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Institute
Understanding the brain's proactive nature and its ability to anticipate the future has been a longstanding pursuit in philosophy and scientific research. The predictive processing framework explains how the brain generates predictions based on environmental regularities and adapts to both predicted and unpredicted events. Prediction errors (PE) occur when sensory evidence deviates from predictions, triggering cognitive and neural processes that enhance learning and subsequent memory. However, the effects of PE on episodic memory have not been clearly explained. This dissertation aims to address three key questions to advance our understanding of PE and episodic memory. First, how does the degree of PE influence episodic memory, and how do expected and unexpected events interact in this process? Second, what insights can be gained from studying the electrophysiological activity associated with prediction violations, and what role does PE play in subsequent memory benefits? Lastly, how do memory processes change across the lifespan, and how does this impact the brain's ability to remember events? By answering these questions, this dissertation contributes to advancing our understanding of the cognitive and neural mechanisms underlying the relationship PE and episodic memory.
Die vorliegende Dissertation befasst sich mit Flow-Zuständen beim Lesen fiktiver Texte. Das 1975 von Mihaly Csikszentmihalyi vorgestellte Konzept des Flow bezieht sich auf das völlige Aufgehen in einer optimal herausfordernden Tätigkeit, das mit Absorption, Verarbeitungsflüssigkeit und intrinsische Freude einhergeht. Bislang wurde Flow zumeist im Kontext motorischer und leistungsorientierter Aktivitäten empirisch untersucht und in erster Linie theoretisch mit Lesefreude in Verbindung gebracht. Ziel der drei Studien, die diese Dissertation umfasst, war es daher einerseits, Flow beim Lesen erstmals anhand größerer Leser-Stichproben und mithilfe von psychometrischen Gütekriterien genügenden Messinstrumenten nachzuweisen. Andererseits sollte Flow im Rahmen eines Modells für positives Leseerleben mit anderen in der Leseforschung diskutierten Konzepten in Verbindung gebracht und im Hinblick auf potenzielle psychophysiologische Korrelate untersucht werden.
In der ersten Studie wurde eine in der allgemeinen Flow-Forschung verbreitete Kurz-Skala an den Lesekontext adaptiert und anhand einer 229 Leser umfassenden Stichprobe psychometrisch getestet. Hierzu wurden die Teilnehmer im Rahmen einer Online-Studie gebeten, nach 20-minütigem Lesen in einem selbstgewählten Roman Fragebögen zu ihrem Leseerleben auszufüllen. Zufriedenstellende Reliabilitätskoeffizienten, positive Korrelationen mit konvergenten Maßen, die faktoranalytische Unterscheidbarkeit zu diskriminanten Maßen und die erwartete Assoziation mit einem Flow-Kriterium bestätigten die Güte der Flow-Skala. Eine Explorative Faktorenanalyse ergab jedoch, dass fast alle Items auf dem Faktor Absorption luden. Zudem ließ die zweifakorielle Skalenstruktur keine abschließende Aussage zur Legitimierung eines globalen Flow-Scores zu. Daher wurde in der zweiten Studie auf Basis der ersten Skala und der aus der Theorie bekannten Flow-Komponenten ein umfassenderer lesespezifischer Flow-Fragebogen entwickelt. Dessen Reliabilität und Validität konnte anhand einer Online-Studie mit 373 Teilnehmern, in deren Rahmen ein Kapitel aus Homers Odyssee gelesen wurde, bestätigt werden. Neben Hinweisen zur konvergenten und diskriminanten Konstrukt- und zur Kriteriumsvalidität stützten die Ergebnisse einer Konfirmatorischen Faktorenanalyse eine theoretisch angemessene Skalenstruktur, mit den einzelnen Komponenten, mit Absorption, Verarbeitungsflüssigkeit und intrinsischer Freude als Subdimensionen und mit Flow als übergeordnetem Faktor. Mittels eines Strukturgleichungsmodells konnte zudem demonstriert werden, dass der auf Basis dieses Fragebogens gemessene Flow eine zentrale Rolle beim Leseerleben einnehmen kann. So wurde Flow als Mediator für andere, ebenfalls erhobene Erlebnisformen beim Lesen wie etwa Identifikation oder Spannung bestätigt. Von diesen Konzepten klärte Flow den größten Anteil an Varianz in Lesefreude und Textverständnis auf, die als Outcomes von positivem Leseerleben modelliert wurden. Da Flow gegenüber anderen Konzepten der Leseforschung den Vorteil hat, die Ableitung experimenteller Paradigmen und psychophysiologischer Hypothesen zu ermöglichen, wurden in der dritten Studie über die Manipulation des stilistischen Herausforderungsgrades eines weiteren Odyssee-Kapitels unterschiedliche Lese-Bedingungen hergestellt und kardiovaskuläre Daten gemessen. Es zeigten sich zwar keine signifikanten Gruppenunterschiede im Flow-Erleben, jedoch Interaktionen zwischen der Lesebedingung und kardiovaskulären Indikatoren bei der Vorhersage von Flow. So scheinen parasympathische Dominanz und ein entsprechender innerer Entspannungszustand, indiziert durch eine geringe Herzrate und hohe Herzratenvariabilität, Flow beim Lesen zu begünstigen, wenn der Text stilistisch anspruchsvoll ist. Es fanden sich hingegen keine Hinweise dafür, dass Flow-Erleben die Herzaktivität von Lesern verändert oder sich durch sie objektiv erfassen lässt.
Insgesamt sprechen die Ergebnisse dieses Forschungsprojektes somit für das Auf-treten von Flow beim Lesen sowie für dessen zentrale Rolle bei positiven Leseerlebnissen. Außerdem zeigen sie das Potenzial des Flow-Konzeptes für die Leseforschung auf, insbesondere hinsichtlich psychophysiologischer Experimentalstudien.
Misconceptions about scientific concepts often prevail even if learners are confronted with conflicting evidence. This study tested the facilitative role of surprise in children’s revision of misconceptions regarding water displacement in a sample of German children (N = 94, aged 6–9 years, 46% female). Surprise was measured via the pupil dilation response. It was induced by letting children generate predictions before presenting them with outcomes that conflicted with their misconception. Compared to a control condition, generating predictions boosted children’s surprise and led to a greater revision of misconceptions (d = 0.56). Surprise further predicted successful belief revision during the learning phase. These results suggest that surprise increases the salience of a cognitive conflict, thereby facilitating the revision of misconceptions.
Individualization can be defined as the adaptation of instructional parameters to relevant characteristics of a specific learner. This definition raises several questions, however: Which characteristics are actually relevant? Which parameters of instruction need to be adjusted, and in which way, to positively interact with those characteristics? In a classroom context, additional questions arise: how can information about the relevant learner characteristics be delivered to the teacher? How can individualized instruction be delivered to each learner in a context that has originally been designed for whole-class instruction? By focusing on the measurement and modelling of learner characteristics and instructional adaptations, this dissertation aims to provide an insight into each of these issues.
This dissertation is divided into two parts. The first part is concerned with the theoretical (Paper 1) and statistical (Paper 2) modeling of learner characteristics in the context of individualized instruction. The second part is concerned with the measurement (Paper 3) and implementation (Paper 4) of individualized instruction in the classroom context.
Paper 1 summarizes existing research on individualization from different research traditions. From this summary I derive the need for a dynamic conceptualization of learner characteristics (acknowledging that learners change during and in interaction with the learning process) and synthesize a dynamic framework that details the opportunities for individualization on three different timescales. Paper 2 reports results from an exploratory study that investigated the potential benefits of utilizing person-centered analysis for the assessment of multivariate learner prerequisites and their interaction with instruction. We found that latent profiles over several reading related abilities could explain differential effectiveness of self-reported teaching foci in German third grade reading lessons. These findings indicate not just a need for stronger individualization of teaching but also an advantage of multivariate conceptualizations of learner characteristics. Additionally, they show the utility of person-centered approaches for the investigation of such multivariate learner characteristics and their interaction with instruction.
In the second part, I investigate possible approaches to the implementation and measurement of individualization in a classroom context. Paper 3 investigates whether teacher-, student- and observer perspectives converge when rating the amount of individualization present in regular classroom instruction. We found considerable agreement between the perspectives, indicating a common understanding of the construct at the classroom level as well as providing some evidence for the validity of the used measurement instruments. Paper 4 replicates findings concerning the effectiveness of formative assessment procedures for fostering reading education, supplemented by a moderator analysis showing that only children with low performance at the beginning of the school-year profited from its implementation. This indicates that the information provided by formative assessment procedures helps teachers to identify struggling readers but does not seem to be utilized for adapting instruction to specific deficits of average or high performing children.
In sum, this dissertation contributes to research on individualized instruction by demonstrating necessary conditions for its effectiveness. It posits the need for a dynamic conceptualization of learner characteristics, demonstrates the advantage of multivariate learner profiles, and points out ways towards the successful implementation of individualized instruction in the classroom.
Childhood and adolescent sexual abuse (CSA) is a traumatic experience associated with a variety of short- and long-term negative consequences. Theoretical models assume that an abuse related and learned distorted image of sexuality might lead CSA survivors to feel obligated to provide sex or engage in unwanted sexual practices in order to gain affection or prevent abandonment. Dialectical behavioral therapy for posttraumatic stress disorder (DBT-PTSD) is tailored to people with PTSD and comorbid emotion regulation deficits. This case study presents the results of an outpatient DBT-PTSD treatment of an adult patient with posttraumatic stress disorder following sexual and physical abuse. DBT-PTSD was used to treat the patient’s complex psychopathological problems and to decrease her risky sexual behavior, which manifested itself in highly dangerous sexual practices with her partner. The treatment took place over a period of 18 months, with a total of 72 sessions. At the end of the treatment, the patient no longer met criteria for PTSD as indicated by large reductions in the assessments used. Furthermore, she managed to distance herself from risky sexual practices and to remain in a satisfying relationship.
Background: The assessment of therapeutic adherence and competence is essential to understand mechanisms that contribute to treatment outcome. Nevertheless, their assessment is often neglected in psychotherapy research.
Aims/Objective: To develop an adherence and a treatment-specific competence rating scale for Dialectical Behaviour Therapy for Posttraumatic Stress Disorder (DBT-PTSD), and to examine their psychometric properties. Global cognitive behavioural therapeutic competence and disorder-specific therapeutic competence were assessed using already existing scales to confirm their psychometric properties in our sample of patients with PTSD and emotion regulation difficulties.
Method: Two rating scales were developed using an inductive procedure. 155 videotaped therapy sessions from a multicenter randomised controlled trial were rated by trained raters using these scales, 40 randomly chosen videotapes involving eleven therapists and fourteen patients were doubly rated by two raters.
Results: Both the adherence scale (Patient-level ICC = .98; αs = .65; αp = .75) and the treatment-specific competence scale (Patient-level ICC = .98; αs = .78; αp = .82) for DBT-PTSD showed excellent interrater – and good reliability on the patient level. Content validity, including relevance and appropriateness of all items, was confirmed by experts in DBT-PTSD for the new treatment-specific competence scale.
Conclusion: Our results indicate that both scales are reliable instruments. They will be useful to examine possible effects of adherence and treatment-specific competence on DBT-PTSD treatment outcome.
Background: Many refugees have experienced multiple traumatic events in their country of origin and/or during flight. Trauma-related disorders such as posttraumatic stress disorder (PTSD) or complex PTSD (CPTSD) are prevalent in this population, which highlights the need for accessible and effective treatment. Imagery Rescripting (ImRs), an imagery-based treat- ment that does not use formal exposure and that has received growing interest as an innovative treatment for PTSD, appears to be a promising approach.
Objective: This randomized-controlled trial aims to investigate the efficacy of ImRs for refugees compared to Usual Care and Treatment Advice (UC+TA) on (C)PTSD remission and reduction in other related symptoms.
Method: Subjects are 90 refugees to Germany with a diagnosis of PTSD according to DSM-5. They will be randomly allocated to receive either UC+TA (n = 45) or 10 sessions of ImRs (n = 45). Assessments will be conducted at baseline, post-intervention, three-month follow- up, and 12-month follow-up. Primary outcome is the (C)PTSD remission rate. Secondary outcomes are severity of PTSD and CPTSD symptoms, psychiatric symptoms, dissociative symptoms, quality of sleep, and treatment satisfaction. Economic analyses will investigate health-related quality of life and costs. Additional measures will assess migration and stress- related factors, predictors of dropout, therapeutic alliance and session-by-session changes in trauma-related symptoms.
Results and Conclusions: Emerging evidence suggests the suitability of ImRs in the treat- ment of refugees with PTSD. After positive evaluation, this short and culturally adaptable treatment can contribute to close the treatment gap for refugees in high-income countries such as Germany.
Trial registration: German Clinical Trials Register under trial number DRKS00019876, regis- tered prospectively on 28 April 2020.
Background: Intrusive mental imagery (MI) plays a crucial role in the maintenance of posttraumatic stress disorder (PTSD) in adults. Evidence on the characteristics of MI in adolescents suffering from PTSD is sparse. The aim of this study was to thoroughly assess MI in an adolescent sample suffering from PTSD after the experience of childhood sexual abuse and/or childhood physical abuse (CA).
Methods: Thirty-two adolescents with a primary diagnosis of PTSD after CA and 32 adolescents without any mental disorder and without a history of CA, matched for age and gender, completed questionnaires assessing the characteristics of negative and positive MI, as well as images of injury and death that lead to positive emotions (ID-images).
Results: The PTSD group reported significantly more frequent, more vivid, more distressing and more strongly autobiographically linked negative MI compared to the control group. Although positive MI was highly present in both groups (PTSD: 65.6%; controls: 71.9%), no significant differences emerged between the two groups regarding the distinct characteristics of positive MI. The frequency of the ID-images did not significantly differ between the two groups (PTSD: 21.9%; controls: 9.4%), although the ID-images were more vivid in the PTSD group.
Discussion: Negative MI appears to be crucial in adolescent PTSD, whilst positive MI are unexpectedly common in both the PTSD and the control group. The role of positive MI as well as that of ID-images remain unclear. Specific interventions for changing negative MI that are tailored to the developmental challenges in adolescents with PTSD should be developed.
Trial registration: Some of the PTSD patients in this study were also part of a randomized controlled trial on Developmentally adapted Cognitive Processing Therapy (D-CPT). This trial was registered at the German Clinical Trial Registry (GCTR), DRKS00004787, 18 March 2013.
Background: Dialectical behaviour therapy for posttraumatic stress disorder (DBT-PTSD), which is tailored to treat adults with PTSD and co-occurring emotion regulation difficulties, has already demonstrated its efficacy, acceptance and safety in an inpatient treatment setting. It combines elements of DBT with trauma-focused cognitive behavioural interventions.
Objective: To investigate the feasibility, acceptance and safety of DBT-PTSD in an outpatient treatment setting by therapists who were novice to the treatment, we treated 21 female patients suffering from PTSD following childhood sexual abuse (CSA) plus difficulties in emotion regulation in an uncontrolled clinical trial.
Method: The Clinician Administered PTSD Symptom Scale (CAPS), the Davidson Trauma Scale (DTS), the Borderline Section of the International Personality Disorder Examination (IPDE) and the Borderline Symptom List (BSL-23) were used as primary outcomes. For secondary outcomes, depression and dissociation were assessed. Assessments were administered at pretreatment, post-treatment and six-week follow-up.
Results: Improvement was significant for PTSD as well as for borderline personality symptomatology, with large pretreatment to follow-up effect sizes for completers based on the CAPS (Cohens d = 1.30), DTS (d = 1.50), IPDE (d = 1.60) and BSL-23 (d = 1.20).
Conclusion: The outcome suggests that outpatient DBT-PTSD can safely be used to reduce PTSD symptoms and comorbid psychopathology in adults who have experienced CSA.
Social pain is an emotional reaction to social exclusion which has been widely investigated in experimental settings. We developed the Social Pain Questionnaire (SPQ) and examined its factor structure, reliability, and construct validity. We constructed a 46-item pool that covered a broad range of situations related to social pain. Using three different subsamples (Online convenience sample: n = 623, Representative sample: n = 2531, Clinical sample of outpatients seeking psychotherapy: n = 270) we reduced the item pool to 10 items for the final SPQ scale, paying particular attention to content validity and factorial structure. Convergent, divergent and discriminant validity were assessed using standardized measures of related constructs and group differences. For the final 10-item version, a good factorial structure and reliability were found. Convergent validity was supported by correlations with related instruments of interpersonal sensitivity, attachment styles, depression and social anxiety. The representative and clinical sample differed significantly in social pain. The SPQ is an economic self-report measure with solid psychometric properties. Our data support the factorial, construct and convergent validity. The SPQ can be used to clarify the role of social pain in mental disorders and to incorporate interventions targeted towards social pain in psychotherapeutic settings.
The COVID-19 pandemic has called worldwide for strong governmental measures to contain its spread, associated with considerable psychological distress. This study aimed at screening a convenience sample in Germany during lockdown for perceived vulnerability to disease, knowledge about COVID-19, symptoms of depression and anxiety, and behavioral responses. In an online survey, 1358 participants completed the perceived vulnerability to disease scale (PVD), the Patient Health Questionnaire (PHQ-4), and questionnaires on knowledge about COVID-19 and self-perceived change in behaviors in response to COVID-19. Lower and upper quartiles of the PVD were used to classify individuals into low and high PVD. A confirmatory factor analysis supported three factors representing risk, preventive and adaptive behavior as behavioral responses to COVID-19 lockdown. A structural equation model showed that the score of the knowledge scale significantly predicted the self-reported increase in adaptive and preventive behavior. The score in the PVD-subscale Perceived Infectability predicted a self-reported increase in preventive behavior, whereas the Germ Aversion score predicted a self-reported increase in preventive and a decrease in risk behavior. The score in PHQ-4 predicted a higher score in the perceived infectability and germ aversion subscales, and a self-reported decrease in adaptive behavior. Low-, medium- and high-PVD groups reported distinct patterns of behavior, knowledge, and mental health symptoms. This study shows that perceived vulnerability to disease is closely linked to preventive behaviors and may enhance adaptation to COVID-19 pandemic.
Objectives: Current treatments for chronic depression have focused on reducing interpersonal problems and negative affect, but paid little attention to promoting prosocial motivation and positive affect. Following this treatment focus, the objective of the present study was to examine whether the combination of metta (Loving Kindness) group meditation and subsequent tailored individual therapy focusing on kindness towards oneself and others (metta-based therapy, MBT) shows greater improvements in depressive symptoms than a wait list control group in patients with chronic depression. Methods: Forty-eight patients with DSM-5 persistent depressive disorder were randomly assigned to MBT or a wait list control condition. Outcome was assessed after group meditation, after subsequent individual therapy, and at 6-month follow-up. The primary outcome measure was an independent blind rating of depressive symptoms at post-test. Secondary outcome included changes in self-reported depression, behavioral activation, rumination, social functioning, mindfulness, compassion, and clinician-rated emotion regulation. Results: Mixed-design analyses showed significant differences between MBT and WLC in changes from pre- to post-test in clinician-rated and self-rated depression, behavioral activation, rumination, social functioning, mindfulness, and emotion regulation. Most of the changes occurred during group meditation and were associated with large effect sizes. Improvements were maintained at 6-month follow-up. Conclusions: The results provide preliminary support for the effectiveness of MBT in treating chronic depression. Trial Registration: ISRCTN, ISRCTN97264476.
Background: Personal treatment goals (PTG) are important means to tailor psychotherapy to the needs of the patient, leading to increased engagement and greater improvement in relevant outcomes. According to lifespan developmental research, motivational goals in old age differ from goals of younger people, with management of losses rather than growth becoming more prevalent. However, this study is the first to systematically investigate age-specific differences in PTGs. Method: We used routine data from patients with major depression assessed at the beginning of outpatient cognitive behavioural therapy. Initial high-priority PTGs were assessed using the Bern Inventory of Treatment Goals (BIT-C). Older patients (≥60 years, n = 52) were matched to younger patients (<60 years, n = 52) with regard to severity of depression, number of comorbidities, gender and level of education. Results: Using a mixed method approach, high-priority PTGs of both age groups were focused most strongly on reducing depressive symptoms and, subsequently, anxiety. At the same time, older patients focused more strongly on PTGs related to well-being and functioning, while younger patients' emphasis was on personal growth. Furthermore, better coping with the ageing process and physical losses emerged as important PTGs for some older patients. Conclusion: Initial PTG themes are specific to diagnosis, but also seem to differ in regard to age. Thus, it is important to develop age-sensitive measures that allow appropriate and efficient tailoring of psychotherapy to meet older patients' needs and preferences.
Purpose: Physical activity is associated with altered levels of circulating microRNAs (ci-miRNAs). Changes in miRNA expression have great potential to modulate biological pathways of skeletal muscle hypertrophy and metabolism. This study was designed to determine whether the profile of ci-miRNAs is altered after different approaches of endurance exercise. Methods: Eighteen healthy volunteers (aged 24 ± 3 years) participated this three-arm, randomized-balanced crossover study. Each arm was a single bout of treadmill-based acute endurance exercise at (1) 100% of the individual anaerobic threshold (IANS), (2) at 80% of the IANS and (3) at 80% of the IANS with blood flow restriction (BFR). Load-associated outcomes (fatigue, feeling, heart rate, and exhaustion) as well as acute effects (circulating miRNA patterns and lactate) were determined. Results: All training interventions increased the lactate concentration (LC) and heart rate (HR) (p < 0.001). The high-intensity intervention (HI) resulted in a higher LC than both lower intensity protocols (p < 0.001). The low-intensity blood flow restriction (LI-BFR) protocol led to a higher HR and higher LC than the low-intensity (LI) protocol without BFR (p = 0.037 and p = 0.003). The level of miR-142-5p and miR-197-3p were up-regulated in both interventions without BFR (p < 0.05). After LI exercise, the expression of miR-342-3p was up-regulated (p = 0.038). In LI-BFR, the level of miR-342-3p and miR-424-5p was confirmed to be up-regulated (p < 0.05). Three miRNAs and LC show a significant negative correlation (miR-99a-5p, p = 0.011, r = − 0.343/miR-199a-3p, p = 0.045, r = − 0.274/miR-125b-5p, p = 0.026, r = − 0.302). Two partial correlations (intervention partialized) showed a systematic impact of the type of exercise (LI-BFR vs. HI) (miR-99a-59: r = − 0.280/miR-199a-3p: r = − 0.293). Conclusion: MiRNA expression patterns differ according to type of activity. We concluded that not only the intensity of the exercise (LC) is decisive for the release of circulating miRNAs—as essential is the type of training and the oxygen supply.
Introduction: The purpose of this study was to clarify whether blood-flow restriction during resting intervals [resting blood-flow restriction (rBFR)] is comparable to a continuous BFR (cBFR) training regarding its effects on maximum strength, hypertrophy, fatigue resistance, and perceived discomfort.
Materials and Methods: Nineteen recreationally trained participants performed four sets (30-15-15-15 repetitions) with 20% 1RM on a 45° leg press twice a week for 6 weeks (cBFR, n = 10; rBFR, n = 9). Maximum strength, fatigue resistance, muscle thickness, and girth were assessed at three timepoints (pre, mid, and post). Subjective pain and perceived exertion were determined immediately after training at two timepoints (mid and post).
Results: Maximum strength (p < 0.001), fatigue resistance (p < 0.001), muscle thickness (p < 0.001), and girth (p = 0.008) increased in both groups over time with no differences between groups (p > 0.05). During the intervention, the rBFR group exposed significantly lower perceived pain and exertion values compared to cBFR (p < 0.05).
Discussion: Resting blood-flow restriction training led to similar gains in strength, fatigue resistance, and muscle hypertrophy as cBFR training while provoking less discomfort and perceived exertion in participants. In summary, rBFR training could provide a meaningful alternative to cBFR as this study showed similar functional and structural changes as well as less discomfort.
We investigated whether dichotomous data showed the same latent structure as the interval-level data from which they originated. Given constancy of dimensionality and factor loadings reflecting the latent structure of data, the focus was on the variance of the latent variable of a confirmatory factor model. This variance was shown to summarize the information provided by the factor loadings. The results of a simulation study did not reveal exact correspondence of the variances of the latent variables derived from interval-level and dichotomous data but shrinkage. Since shrinkage occurred systematically, methods for recovering the original variance were fleshed out and evaluated.
This review provides an overview of the current state of research concerning the role of mental imagery (MI) in mental disorders and evaluates treatment methods for changing MI in childhood. A systematic literature search using PubMed/Medline, Web of Science, and PsycINFO from 1872 to September 2020 was conducted. Fourteen studies were identified investigating MI, and fourteen studies were included referring to interventions for changing MI. Data from the included studies was entered into a data extraction sheet. The methodological quality was then evaluated. MI in childhood is vivid, frequent, and has a significant influence on cognitions and behavior in posttraumatic stress disorder (PTSD), social anxiety disorder (SAD), and depression. The imagery’s perspective might mediate the effect of MI on the intensity of anxiety. Imagery rescripting, emotive imagery, imagery rehearsal therapy, and rational-emotive therapy with imagery were found to have significant effects on symptoms of anxiety disorders and nightmares. In childhood, MI seems to contribute to the maintenance of SAD, PTSD, and depression. If adapted to the developmental stages of children, interventions targeting MI are effective in the treatment of mental disorders.
Um Unterricht durch digitale Medien lernwirksam gestalten zu können, sollten Lehrkräfte über die notwendigen Kompetenzen für einen didaktisch angemessenen und reflektieren Einsatz von Technologien verfügen. Neben der Verbesserung der technischen Infrastruktur an Schulen ist es daher notwendig, Lehrkräfte bei ihrer Professionalisierung zu unterstützen. Lehrkräfte an deutschen Schulen zeigen allerdings eine eher zurückhaltende Teilnahme an Fortbildungsangeboten zu digitalen Themen, was auf eine fehlende Passung zu den realen Bedarfen hinweisen kann. Der vorliegende Beitrag widmet sich daher Präferenzen von Lehrkräften zu Inhalten und Gestaltungsmerkmalen von Fortbildungen zu digitalen Medien und berichtet dazu Ergebnisse einer Befragung von Gymnasiallehrkräften (N = 238). Um möglichst zielgruppenspezifische Ergebnisse zu erhalten, wurden über eine latente Profilanalyse mit Personenmerkmalen (technologisches und technologisch-pädagogisches Wissen, Selbstwirksamkeit, Mediennutzung) drei Profile identifiziert und im Hinblick auf ihre Präferenzen verglichen. Die Ergebnisse weisen auf eine Vielfalt an thematischen Wünschen sowie auf die Notwendigkeit einer bedarfsgerechten Gestaltung von Fortbildungen hin. Abschließend werden zusammenfassende Empfehlungen zur Gestaltung von Lehrkräftefortbildungen zu digitalen Medien formuliert.
Children often perform worse than adults on tasks that require focused attention. While this is commonly regarded as a sign of incomplete cognitive development, a broader attentional focus could also endow children with the ability to find novel solutions to a given task. To test this idea, we investigated children’s ability to discover and use novel aspects of the environment that allowed them to improve their decision-making strategy. Participants were given a simple choice task in which the possibility of strategy improvement was neither mentioned by instructions nor encouraged by explicit error feedback. Among 47 children (8—10 years of age) who were instructed to perform the choice task across two experiments, 27.5% showed a full strategy change. This closely matched the proportion of adults who had the same insight (28.2% of n = 39). The amount of erroneous choices, working memory capacity and inhibitory control, in contrast, indicated substantial disadvantages of children in task execution and cognitive control. A task difficulty manipulation did not affect the results. The stark contrast between age-differences in different aspects of cognitive performance might offer a unique opportunity for educators in fostering learning in children.
Background: Excessive unilateral joint loads may lead to overuse disorders. Bilateral training in archery is only performed as a supportive coordination training and as a variation of typical exercise. However, a series of studies demonstrated a crossover transfer of training-induced motor skills to the contralateral side, especially in case of mainly unilateral skills. We compared the cervical spine and shoulder kinematics of unilateral and bilateral training archers.
Methods: In this cross-sectional study, 25 (5 females, 48 ± 14 years) bilaterally training and 50 age-, sex- and level-matched (1:2; 47.3 ± 13.9 years) unilaterally training competitive archers were included. Cervical range of motion (RoM, all planes) and glenohumeral rotation were assessed with an ultrasound-based 3D motion analysis system. Upward rotation of the scapula during abduction and elevation of the arm were measured by means of a digital inclinometer and active shoulder mobility by means of an electronic caliper. All outcomes were compared between groups (unilaterally vs. bilaterally) and sides (pull-hand- vs. bow-hand-side).
Results: Unilateral and bilateral archers showed no between group and no side-to-side-differences in either of the movement direction of the cervical spine. The unilateral archers had higher pull-arm-side total glenohumeral rotation than the bilateral archers (mean, 95% CI), (148°, 144–152° vs. 140°, 135°-145°). In particular, internal rotation (61°, 58–65° vs. 56°, 51–61°) and more upward rotation of the scapula at 45 degrees (12°, 11–14° vs. 8°, 6–10°), 90 degrees (34°, 31–36° vs. 28°, 24–32°), 135 degrees (56°, 53–59° vs. 49°, 46–53°), and maximal (68°, 65–70° vs. 62°, 59–65°) arm abduction differed. The bow- and pull-arm of the unilateral, but not of the bilateral archers, differed in the active mobility of the shoulder (22 cm, 20–24 cm vs. 18 cm, 16–20 cm).
Conclusions: Unilaterally training archers display no unphysiologic movement behaviour of the cervical spine, but show distinct shoulder asymmetris in the bow- and pull-arm-side when compared to bilateral archers in glenohumeral rotation, scapula rotation during arm abduction, and active mobility of the shoulder. These asymmetries in may exceed physiological performance-enhancing degrees. Bilateral training may seems appropriate in archery to prevent asymmetries.
Point forecasts can be interpreted as functionals (i.e., point summaries) of predictive distributions. We extend methodology for the identification of the functional based on time series of point forecasts and associated realizations. Focusing on state-dependent quantiles and expectiles, we provide a generalized method of moments estimator for the functional, along with tests of optimality under general joint hypotheses of functional relationships and information bases. Our tests are more flexible, and in simulations better calibrated and more powerful than existing solutions. In empirical examples, economic growth forecasts and model output for precipitation are indicative of overstatement in anticipation of extreme events.
Objectives: The aim of this study was to compare the effects of acupuncture and medical training therapy alone and in combination with those of usual care on the pain sensation of patients with frequent episodic and chronic tension-type headache.
Design: This was a prospective single-centre randomised controlled trial with four balanced treatment arms. The allocation was carried out by pre-generated randomisation lists in the ratio 1:1:1:1 with different permutation block sizes.
Setting: The study was undertaken in the outpatient clinic of Rehabilitation Medicine of the Hannover Medical School.
Participants and interventions: Ninety-six adult patients with tension-type headache were included and randomised into usual care (n = 24), acupuncture (n = 24), medical training (n = 24), and combination of acupuncture and medical training (n = 24). One patient was excluded from analysis because of withdrawing her/his consent, leaving 95 patients for intention to treat analysis. Each therapy arm consisted of 6 weeks of treatment with 12 interventions. Follow-up was at 3 and 6 months.
Main outcome measures: Pain intensity (average, maximum and minimum), frequency of headache, responder rate (50% frequency reduction), duration of headache and use of headache medication.
Clinical results: The combination of acupuncture and medical training therapy significantly reduced mean pain intensity compared to usual care (mean = −38%, standard deviation = 25%, p = 0.012). Comparable reductions were observed for maximal pain intensity (−25%, standard deviation = 20%, 0.014) and for minimal pain intensity (−35%, standard deviation = 31%, 0.03). In contrast, neither acupuncture nor medical training therapy differed significantly from usual care. No between-group differences were found in headache frequency, mean duration of headache episodes, and pain medication intake. At 3 months, the majority of all patients showed a reduction of at least 50% in headache frequency. At 6 months, significantly higher responder rates were found in all intervention groups compared to usual care.
Conclusions: In contrast to monotherapy, only the combination of acupuncture and medical training therapy was significantly superior in reduction of pain intensity compared to usual care.
Fragestellung: Es existiert eine Vielzahl von Begriffen für Verhaltenssüchte, die Mängel in Operationalisierung, Bezug zum Verhalten, Kompatibilität mit internationalen Klassifikationen sowie nicht stigmatisierender Nutzung aufweisen. Daher werden einheitliche Begriffe für Verhaltenssüchte benötigt. Methode: Im Rahmen einer Leitlinie zur Diagnostik und Behandlung Internetbezogener Störungen wurden Lösungen in Form eines Expertenkonsens entwickelt. Ergebnisse: Als Grundlage wurde die Einteilung von Verhaltenssüchten in der 11. Revision der International Classification of Diseases (ICD-11) genutzt. Es wurden die Begriffe Computerspielstörung (CSS) und Glücksspielstörung (GSS) für die beiden in ICD-11 enthaltenen Verhaltenssüchte gewählt sowie drei weitere spezifizierte Verhaltenssüchte vorgeschlagen: Soziale-Netzwerke-Nutzungsstörung (SNS), Shoppingstörung (ShS) und Pornografie-Nutzungsstörung (PNS). Für CSS, GSS und ShS wird weiterhin zwischen vorwiegend online oder vorwiegend offline unterschieden. Als Oberbegriff wird Störungen aufgrund von Verhaltenssüchten vorgeschlagen. Für Störungen aufgrund von Verhaltenssüchten, die sich vorwiegend auf online ausgeübte Verhaltensweisen beziehen, kann alternativ der Oberbegriff Internetnutzungsstörungen verwendet werden. Schlussfolgerung: Die vorgeschlagenen Termini weisen Verbesserungen im Vergleich zu uneindeutigen oder aus anderen Gründen ungünstigen Begriffen dar. Gleichzeitig konnte eine Kompatibilität mit der ICD-11 ermöglicht werden.
Background: Diet and physical activity (PA) have a major impact on physical and mental health. However, there is a lack of effective strategies for sustaining these health-protective behaviors. A shift to a microtemporal, within-person approach is needed to capture dynamic processes underlying eating behavior and PA, as they change rapidly across minutes or hours and differ among individuals. However, a tool that captures these microtemporal, within-person processes in daily life is currently not present.
Objective: The APPetite-mobile-app is developed for the ecological momentary assessment of microtemporal, within-person processes of complex dietary intake, objectively recorded PA, and related factors. This study aims to evaluate the feasibility and usability of the APPetite-mobile-app and the validity of the incorporated APPetite-food record.
Methods: The APPetite-mobile-app captures dietary intake event-contingently through a food record, captures PA continuously through accelerometers, and captures related factors (eg, stress) signal-contingently through 8 prompts per day. Empirical data on feasibility (n=157), usability (n=84), and validity (n=44) were collected within the Eat2beNICE-APPetite-study. Feasibility and usability were examined in healthy participants and psychiatric patients. The relative validity of the APPetite-food record was assessed with a subgroup of healthy participants by using a counterbalanced crossover design. The reference method was a 24-hour recall. In addition, the energy intake was compared with the total energy expenditure estimated from accelerometry.
Results: Good feasibility, with compliance rates above 80% for prompts and the accelerometer, as well as reasonable average response and recording durations (prompt: 2.04 min; food record per day: 17.66 min) and latencies (prompts: 3.16 min; food record: 58.35 min) were found. Usability was rated as moderate, with a score of 61.9 of 100 on the System Usability Scale. The evaluation of validity identified large differences in energy and macronutrient intake between the two methods at the group and individual levels. The APPetite-food record captured higher dietary intakes, indicating a lower level of underreporting, compared with the 24-hour recall. Energy intake was assessed fairly accurately by the APPetite-food record at the group level on 2 of 3 days when compared with total energy expenditure. The comparison with mean total energy expenditure (2417.8 kcal, SD 410) showed that the 24-hour recall (1909.2 kcal, SD 478.8) underestimated habitual energy intake to a larger degree than the APPetite-food record (2146.4 kcal, SD 574.5).
Conclusions: The APPetite-mobile-app is a promising tool for capturing microtemporal, within-person processes of diet, PA, and related factors in real time or near real time and is, to the best of our knowledge, the first of its kind. First evidence supports the good feasibility and moderate usability of the APPetite-mobile-app and the validity of the APPetite-food record. Future findings in this context will build the foundation for the development of personalized lifestyle modification interventions, such as just-in-time adaptive interventions.
Stress influences health not only directly, but also indirectly through changes in health-related behaviours, such as diet. Research has shown that stress influences individuals’ eating behaviour in different ways: Some increase, some decrease food intake, while others show no change. Identifying individuals at risk for stress-induced eating is essential for the development of tailored strategies for the prevention and treatment of overweight and obesity. The individual-difference model of stress-induced eating suggests that individual differences in the dietary response to stress are determined by differences in learning history, attitudes, or biology. Even though many studies have tried to identify person-characteristics that explain individual differences in the dietary response to stress, evidence remains inconclusive. Considering that eating is a repeated-occurrence health behaviour which is performed multiple times a day, Ecological Momentary Assessment (EMA) seems particularly promising to study the complex relationship between stress and food intake when and where it naturally occurs. Despite its potential, the number of studies applying EMA to assess the stress and eating relationship is limited. Furthermore, previous EMA studies show two limitations: (1) Actual food intake is not assessed and (2) inappropriate data analysis approaches are applied to semicontinuous outcomes. Therefore, the first aim of the present dissertation was to address the lack of an EMA tool that allows the assessment of stress and actual food intake by developing and evaluating the APPetite-mobile-app. Feasibility and usability of the APPetite-mobile-app as well as validity of the incorporated food record were empirically examined (Paper 1). Given the lack of an appropriate data analysis procedure, the second aim of the present dissertation was the introduction of a sophisticated statistical approach for semicontinuous data (Paper 2): Multilevel two-part modelling allows studying the influence of stress on the occurrence (i.e., whether individuals eat) as well as the amount of food intake (i.e., how much individuals eat) while accounting for the potential dependency between the two. Lastly, the novel EMA tool and the advanced data analysis procedure were integrated in order to gain novel insights into individual differences in the dietary response to stress and thereby identify individuals at risk for stress-induced eating in daily life (Paper 3). Results of Paper 1 showed good feasibility and acceptable usability of the APPetite-mobile-app as well as validity of the incorporated food record. Findings of Paper 2 highlight that multilevel two-part models offer novel and distinct insights in terms of the occurrence and the amount of food intake and are therefore not only methodologically but also conceptually promising. Paper 3 provides first evidence that the dietary response to stress might not be as stable as yet assumed. Time-varying factors might moderate the relationship between stress and actual food intake. Therefore, an expansion of the individual-difference model is proposed which accounts for time-varying factors. Further EMA studies are needed to verify the expanded model and identify time-varying factors which influence the dietary response to stress. Beyond that, improvements in the dietary assessment are required in order to allow prolonged EMA periods as well as larger samples. The present dissertation contributes to the research on the stress and eating relationship as it overcomes limitations of previous EMA studies and yields novel insights into the relationship between stress and actual food intake in daily life. Not only identifying individuals at risk for stress-induced eating, but also the identification of situations with an increased risk for stress-induced eating appears to be important for the development of targeted strategies for the prevention and treatment of overweight and obesity.
Many sports employ caloric restriction (CR) to reduce athletes’ body mass. During these phases, resistance training (RT) volume is often reduced to accommodate recovery demands. Since RT volume is a well-known anabolic stimulus, this review investigates whether a higher training volume helps to spare lean mass during CR. A total of 15 studies met inclusion criteria. The extracted data allowed calculation of total tonnage lifted (repetitions × sets × intensity load) or weekly sets per muscle group for only 4 of the 15 studies, with RT volume being highly dependent on the examined muscle group as well as weekly training frequency per muscle group. Studies involving high RT volume programs (≥ 10 weekly sets per muscle group) revealed low-to-no (mostly female) lean mass loss. Additionally, studies increasing RT volume during CR over time appeared to demonstrate no-to-low lean mass loss when compared to studies reducing RT volume. Since data regarding RT variables applied were incomplete in most of the included studies, evidence is insufficient to conclude that a higher RT volume is better suited to spare lean mass during CR, although data seem to favor higher volumes in female athletes during CR. Moreover, the data appear to suggest that increasing RT volume during CR over time might be more effective in ameliorating CR-induced atrophy in both male and female resistance-trained athletes when compared to studies reducing RT volume. The effects of CR on lean mass sparing seem to be mediated by training experience, pre-diet volume, and energy deficit, with, on average, women tending to spare more lean mass than men. Potential explanatory mechanisms for enhanced lean mass sparing include a preserved endocrine milieu as well as heightened anabolic signaling.
Background: It is often advised to ensure a high-protein intake during energy-restricted diets. However, it is unclear whether a high-protein intake is able to maintain muscle mass and contractility in the absence of resistance training.
Materials and Methods: After 1 week of body mass maintenance (45 kcal/kg), 28 male college students not performing resistance training were randomized to either the energy-restricted (ER, 30 kcal/kg, n = 14) or the eucaloric control group (CG, 45 kcal/kg, n = 14) for 6 weeks. Both groups had their protein intake matched at 2.8 g/kg fat-free-mass and continued their habitual training throughout the study. Body composition was assessed weekly using multifrequency bioelectrical impedance analysis. Contractile properties of the m. rectus femoris were examined with Tensiomyography and MyotonPRO at weeks 1, 3, and 5 along with sleep (PSQI) and mood (POMS).
Results: The ER group revealed greater reductions in body mass (Δ −3.22 kg vs. Δ 1.90 kg, p < 0.001, partial η2 = 0.360), lean body mass (Δ −1.49 kg vs. Δ 0.68 kg, p < 0.001, partial η2 = 0.152), body cell mass (Δ −0.85 kg vs. Δ 0.59 kg, p < 0.001, partial η2 = 0.181), intracellular water (Δ −0.58 l vs. Δ 0.55 l, p < 0.001, partial η2 = 0.445) and body fat percentage (Δ −1.74% vs. Δ 1.22%, p < 0.001, partial η2 = 433) compared to the CG. Contractile properties, sleep onset, sleep duration as well as depression, fatigue and hostility did not change (p > 0.05). The PSQI score (Δ −1.43 vs. Δ −0.64, p = 0.006, partial η2 = 0.176) and vigor (Δ −2.79 vs. Δ −4.71, p = 0.040, partial η2 = 0.116) decreased significantly in the ER group and the CG, respectively.
Discussion: The present data show that a high-protein intake alone was not able to prevent lean mass loss associated with a 6-week moderate energy restriction in college students. Notably, it is unknown whether protein intake at 2.8 g/kg fat-free-mass prevented larger decreases in lean body mass. Muscle contractility was not negatively altered by this form of energy restriction. Sleep quality improved in both groups. Whether these advantages are due to the high-protein intake cannot be clarified and warrants further study. Although vigor was negatively affected in both groups, other mood parameters did not change.
Korrektur zu: Roth C, Rettenmaier L and Behringer M (2021) High-Protein Energy-Restriction: Effects on Body Composition, Contractile Properties, Mood, and Sleep in Active Young College Students. Front. Sports Act. Living 3:683327. https://doi.org/10.3389/fspor.2021.683327
Development and preliminary validation of the Emotions while Learning an Instrument Scale (ELIS)
(2021)
Learning to play a musical instrument is associated with different, partially conflicting emotions. This paper describes the development and psychometric properties of the Emotions while Learning an Instrument Scale (ELIS). In a longitudinal study with 545 German elementary school children factorial structure and psychometric properties were evaluated. Exploratory and confirmatory factor analyses confirmed a two-factor solution measuring Positive musical Emotions while Learning an Instrument (PELI) and Negative Emotions while Learning an Instrument (NELI). Both subscales yielded scores with adequate internal reliability (Cronbach’s α = .74, .86) and relatively stable retest reliabilities over 18 months (r = .11 -.56). Preliminary evidence of congruent and divergent validity of the subscales is provided. Implications for future research of musical emotional experiences in children are discussed.
Positive psychological coaching (PPC) has emerged as a popular “paradigm” for practitioners interested in the professional development of people. A recent review consolidated the literature on PPC and produced a 5-phase positive psychological coaching model aimed at facilitating professional growth. However, little is known about practically operationalizing each phase of the coaching process (i.e., how to facilitate each phase and which underlying tools and techniques could be employed to do so). As such, the purpose of this systematic review was to address this limitation by (a) determining which coaching tools and techniques are proposed within the coaching literature and (b) classifying the identified tools and techniques into the respective phases of PPC model. The investigation used a two-step approach by conducting a systematic literature review (to identify various PPC tools/techniques) followed by an iterative heuristic classification process (to assign these PPC tools/techniques to a known PPC model). The systematic literature review resulted in 24 peer-reviewed publications on positive psychological coaching, providing 117 different coaching tools that could be condensed into 18 overarching coaching techniques. The iterative classification process showed that most techniques and tools are useful in at least two phases. Interestingly, experts still vary in opinion on the timing and application of these specific techniques and tools within the positive psychological coaching process. This study provides researchers and practitioners with practical guidelines to facilitate a positive psychological coaching process.
Understanding effects of emotional valence and stress on children’s memory is important for educational and legal contexts. This study disentangled the effects of emotional content of to-be-remembered information (i.e., items differing in emotional valence and arousal), stress exposure, and associated cortisol secretion on children’s memory. We also examined whether girls’ memory is more affected by stress induction. A total of 143 6- and 7-year-old children were randomly allocated to the Trier Social Stress Test for Children (n = 103) or a control condition (n = 40). At 25 min after stressor onset, children incidentally encoded 75 objects varying in emotional valence (crossed with arousal) together with neutral scene backgrounds. We found that response bias corrected memory was worse for low-arousing negative items than for neutral and positive items, with the latter two categories not being different from each other. Whereas boys’ memory was largely unaffected by stress, girls in the stress condition showed worse memory for negative items, especially the low-arousing ones, than girls in the control condition. Girls, compared with boys, reported higher subjective stress increases following stress exposure and had higher cortisol stress responses. Whereas a higher cortisol stress response was associated with better emotional memory in girls in the stress condition, boys’ memory was not associated with their cortisol secretion. Taken together, our study suggests that 6- and 7-year-old children, more so girls, show memory suppression for negative information. Girls’ memory for negative information, compared with that of boys, is also more strongly modulated by stress experience and the associated cortisol response.
The present study aimed to investigate the affect-cognition interplay in young and older adults by studying prospective memory (PM), the realisation of delayed intentions. While most previous studies on the topic were conducted in the laboratory, we examined the influence of naturally occurring affect on PM tasks carried out in participants' everyday lives. For seven consecutive days, participants were asked to rate their affective state nine times per day and send text messages either at specific times (time-based PM) or when a particular event occurred (event-based PM). Results showed that within-participants changes in valence from more positive to more negative affect were associated with decreased PM performance. This was similarly true for young and older adults. The design used allowed linkage of within-participants fluctuations of affect and cognitive functions, constituting a methodological advancement. Results suggest that positive affect has the potential to improve cognitive functioning in everyday life.
Als Ausgangspunkt dieser Arbeit dienen Ansätze, die eine narrative Perspektive für das Verständnis von Psychopathologie und die psychotherapeutische Praxis vorschlagen. Im Hinblick auf die Fragen, welche Vorteile die Analyse von Patient*innenerzählungen bieten kann, und durch welche Merkmale psychopathologische Narrative sich auszeichnen, wird ein Überblick über ausgewählte Fallberichte, empirische Untersuchungen und theoretische Überlegungen gegeben. Diese werden unter den drei Kategorien Kohärenz, „Agency“ und Perspektiven beschrieben. Die Arbeit mag einen Impuls geben, ein tieferes Verständnis für narrative Dysfunktionen zu entwickeln und ihre Ursprünge sowie ihre Bedeutung für psychische Störungen und deren Behandlung vermitteln.
Die vorliegende Arbeit beschäftigt sich mit der außerhäuslichen Alltagsmobilität älterer Menschen, die eine zentrale Schlüsselfunktion in der Erhaltung von Lebensqualität und Gesundheit besonders im höheren Lebensalter einnimmt. Außerhäusliche Alltagsmobilität vollzieht sich stets in einem räumlichen Umweltausschnitt und kann aus ökogerontologischer Perspektive als Ergebnis eines gelungenen Person-Umwelt-Austauschs verstanden werden. Inwiefern psychologische Ressourcen im Sinne mobilitätsspezifischer Einstellungen zum Verständnis von zielgerichteter und habitualisierter Alltagsmobilität älterer Menschen beitragen können, ist Gegenstand der vorliegenden Arbeit. Altersspezifische, mobilitätsrelevante Einstellungen im außerhäuslichen Kontext werden sowohl in der sozialwissenschaftlichen Mobilitäts- und Alternsforschung als auch in der Praxis, etwa im Rahmen einer altersgerechten Stadtgestaltung, bislang noch zu wenig berücksichtigt. Die vorliegende Arbeit reagiert auf dieses Forschungsdesiderat, indem sie mobilitätsspezifische Einstellungen im höheren Lebensalter konzeptuell beschreibt, in den Kontext ökogerontologischer Theorien einbettet und ihre Bedeutung für den Erhalt eines aktiven und gelingenden Alterns untersucht. Im Rahmen der Dissertation wurde zunächst auf der Basis klassischer und neuer ökogerontologischer Modelle das Konstrukt der mobilitätsbezogenen Handlungsflexibilität und Routinen (MBFR) konzeptuell entwickelt. MBFR umfasst einerseits die individuelle Überzeugung, das eigene Mobilitätsverhalten an Herausforderungen außer Haus anpassen zu können (FLEX) und andererseits die Präferenz für mobilitätsbezogene Alltagsroutinen (ROU). Daraufhin wurde ein standardisiertes Messinstrument zur Erfassung des MBFR-Konzepts entwickelt, optimiert und hinsichtlich seiner psychometrischen Qualität untersucht. Die Formulierung der Testitems erfolgte in Anlehnung an bereits existierende Fragebögen zu verwandten Konstrukten. In der vorwiegend online durchgeführten Pilotstudie (Penger & Oswald, 2017) wurden die Items mittels explorativer Faktorenanalysen hinsichtlich ihrer dimensionalen Struktur untersucht. Die Stichprobe umfasste 265 Personen im Alter von 65 Jahren oder älter. Die Analysen des MBFR-Instruments ergaben nach Ausschluss von Items mit niedrigen und nicht eindeutigen Ladungen drei substanzielle Faktoren. Die Items der ersten Dimension bildeten die Überzeugung ab, flexibel mit personenbezogenen, altersassoziierten Herausforderungen (z. B. Schwierigkeiten im Gehen oder auf eine Gehhilfe angewiesen sein) umgehen zu können, um außerhäuslich mobil zu sein. Die Items der zweiten Dimension erfassten die Überzeugung, flexibel mit herausfordernden außerhäuslichen Umweltbedingungen (z. B. eine verlegte Haltestelle oder ein schlechter Zustand der Gehwege) umgehen zu können. Items, die auf den dritten Faktor luden, bildeten die Neigung zu Routinen im Mobilitätsalltag ab, z. B. bekannte Wege beizubehalten oder bei der Ausübung von außerhäuslichen Aktivitäten vertraute Orte aufzusuchen. Während die ersten beiden Faktoren mobilitätsbezogene Handlungsflexibilität (FLEX) messen, werden im dritten Faktor habitualisierte Verhaltensweisen (ROU) erfasst. Alle drei Faktoren wiesen eine akzeptable Reliabilität auf. Auf Basis von Rückmeldungen der Studienteilnehmer:innen wurde das MBFR-Instrument anschließend sprachlich angepasst und gekürzt. Der modifizierte Fragebogen wurde daraufhin in der empirischen Studie „MOBIL bleiben in Stuttgart“ (MBIS) eingesetzt. Dabei sollte die Frage beantwortet werden, ob das finale MBFR-Instrument die zugrundeliegenden Konstrukte valide und reliabel erfasst und die Testwerte somit ausreichende Gültigkeit hinsichtlich faktorieller, Konstrukt- und Kriteriumsvalidität bei älteren Menschen im urbanen Raum aufweisen (Penger & Conrad, eingereicht). Es wurden insgesamt 211 privatwohnende Stuttgarter:innen ab 65 Jahren in persönlichen Interviews und mithilfe eines 7-tägigen Wegetagebuchs zu verschiedenen Aspekten ihrer Mobilität im Wohnumfeld befragt. Statistische Analysen auf latenter Ebene erfolgten mittels Strukturgleichungsmodellen. Bivariate Zusammenhänge und Subgruppenanalysen wurden mittels Korrelations- und Regressionsanalysen berechnet. Die dreifaktorielle Struktur des MBFR-Fragebogens konnte im konfirmatorischen Modell empirisch bestätigt werden. Zudem fiel die interne Konsistenz aller drei Faktoren gut aus. Zusammenhänge zu konstruktverwandten Merkmalen – wie allgemeine und mobilitätsspezifische Einstellungen – deuten darauf hin, dass das MBFR-Instrument ausreichend konvergente Validität aufweist. Analysen auf latenter Ebene ergaben, dass Befragte durchschnittlich mehr außerhäusliche Wege zurückzulegten, wenn sie in stärkerem Maße überzeugt waren, flexibel auf mobilitätsbezogene Herausforderungen reagieren zu können (FLEX). Weiterhin ließen sich positive Zusammenhänge zwischen FLEX und der erlebten Selbstständigkeit sowie dem subjektiven Wohlbefinden aufzeigen. Die Befunde belegen somit hinreichende Übereinstimmungsvalidität der Testwerte. Differenzierte Analysen machten darüber hinaus deutlich, dass FLEX vor allem bei Befragten mit Mobilitätseinschränkungen bedeutsam zur Vorhersage des außerhäuslichen Mobilitätsverhaltens beitrug. ...
Studentische Lehrevaluationsergebnisse sind ein weit verbreitetes Maß, um die Qualität universitärer Lehre zu erfassen. Diese Ergebnisse werden unter anderem dafür genutzt, Entscheidungen für die Modifikation des Lehrangebots zu treffen oder die Vergabe der Leistungsorientieren Mittelvergabe mitzubestimmen. Aufgrund dieser relevanten Folgen wird in dieser Arbeit der Frage nachgegangen, wie ein angemessener Validierungsprozess bezüglich studentischer Lehrevaluationsergebnisse gestaltet werden könnte.
Bisherige Validierungsstudien zu studentischen Lehrevaluationsinventaren fokussierten sich meist auf die Überprüfung verschiedener Validitätsarten (inhaltsbezogene, kriteriumsbezogene oder faktorielle) und die Erfassung der Messfehlerfreiheit.
Allerdings ist zum einen zu hinterfragen, ob diese Ansätze grundsätzlich für alle Inventare geeignet sind. Weiterhin hat sich das Verständnis von dem verändert, was unter Validität verstanden wird: Von der Annahme von Validität als Testeigenschaft, verschiedener Validitätsarten und binärer Aussagen auf Basis von Einzelbefunden hin zu dem Verständnis von Validität bezogen auf die Testwert-Interpretation und Verwendung, zu einem einheitlichen Validitätskonzept und zu einer Validitäts-Argumentation. Diese Veränderungen werden in den neueren argumentationsbasierten Validitätsansätzen berücksichtigt und bieten einen Rahmen, der auf die jeweilige Intention ausgerichtet ist, einen Test oder Fragebogen einzusetzen.
Auf Grundlage dieser argumentationsbasierten Ansätze wird in dieser Arbeit die Interpretation studentischer Lehrevaluationsergebnisse überprüft, die als das Ausmaß an qualitätsbezogener Zufriedenheit der Teilnehmer mit der Durchführung einer Lehrveranstaltung und der Vermittlung von Lehrinhalten angesehen werden. Der Validierungsprozess wird anhand der Lehrevaluationsdaten des Frankfurter Promotionskollegs am Fachbereich Medizin dargestellt. Dieser Prozess bestätigte weitgehend die beabsichtigte Interpretation, zeigte aber auch eine zumindest teilweise Revision des Inventars und eine weitere Überprüfung an. Eine Validierung bezüglich der Verwendung der Lehrevaluationsergebnisse sowie der auf diesen basierenden beabsichtigten Konsequenzen wird in einer Folgestudie überprüft.
Anhand dieser Arbeit wird Anwendern und Entwicklern von Lehrevaluationsinventaren eine Her- und Anleitung für den Validierungsprozess gegeben und die Vorteile argumentationsbasierter Ansätze aufgezeigt.
Never good enough: the relation between the impostor phenomenon and multidimensional perfectionism
(2020)
The Impostor Phenomenon can be described as the tendency to attribute professional success not to one’s own abilities but to excessive effort or fortunate external circumstances. Individuals strongly experiencing those tendencies fear that one day they will be exposed as “impostors” as soon as their alleged incompetence can no longer be concealed. Typical characteristics of the Impostor Phenomenon outlined by Clance (1985) show a remarkable conceptual similarity to the personality construct of perfectionism. Thus, the present study aimed at investigating how the Impostor Phenomenon is related to various facets of dispositional perfectionism with respect to predominant conceptualizations of perfectionism by Frost et al. (1990), Hewitt and Flett (1991), as well as their combination within the bifactor model of Perfectionistic Strivings and Perfectionistic Concerns (Frost et al. 1993). A total of N = 274 individuals participated in an online survey including the Impostor Phenomenon Scale (CIPS; Clance 1988), the Frost Multidimensional Perfectionism Scale (FMPS; Frost et al. 1990), and the Hewitt und Flett Multidimensional Perfectionism Scale (MPS short form; Hewitt et al. 2008). Hierarchical regression analyses were conducted to determine the differential contributions of perfectionism dimensions and factors in predicting the Impostor Phenomenon. The perfectionism dimensions Doubts about Actions, Concern over Mistakes and Socially prescribed Perfectionism appeared to be efficient predictors of the Impostor Phenomenon. Contrary to Perfectionistic Strivings, Perfectionistic Concerns as a maladaptive perfectionism factor strongly contributed to the prediction of the Impostor Phenomenon. Theoretical and practical implications of the associations between the Impostor Phenomenon and multidimensional perfectionism are discussed.
This cross-sectional study examined gender differences between male- and female-typed housework during the early COVID-19 lockdowns in 2020. Participants in Germany, India, Nigeria, and South Africa (N = 823) rated their housework share before and during the lockdown, then speculated about the division of housework performed by men and women in general, before and post-lockdown. Women spent more time on female-typed tasks and men (in Nigeria and South Africa) on male-typed tasks before and during the lockdown. Irrespective of participants’ gender, they speculated that men's and women's housework was more pronounced post-lockdown than before, but we only found gender differences in South Africa and India. Gender role ideology (GRI) moderated the gender‒housework relationship in Germany, but gender did not moderate the paid work hours and housework relationship in any country. Our findings suggest that gendered housework persisted in these countries and raises concerns that this pattern is likely to continue post-lockdown.
Gender stereotypes and self-characterizations in Germany and Nigeria: a cross-cultural comparison
(2021)
Studies on the content of gender stereotypes have been conducted primarily in the United States, while research in other, particularly non-Western, countries is scarce. In this research, we assessed and compared the content of gender stereotypes and self-characterizations in Germany—a Western European country—and Nigeria—a West African country. We asked 403 Germans and Nigerians to rate three target groups (either men in general, women in general, or themselves) on 74 agentic and communal characteristics. We found that Nigerian women were rated as more agentic and more communal than German women, while German men were rated as more communal than Nigerian men, but similarly on agency. On self-characterizations, Nigerian men rated themselves as more communal than German men, but again similarly on agency; Nigerian women rated themselves as more agentic and more communal than German women. Within-country comparisons showed that in Germany, men and women were perceived as similarly agentic and communal, while in Nigeria, men and women were perceived as similarly agentic, but women were perceived as more communal than men (by both others and when rating themselves). Further analysis on individual agentic and communal characteristics, however, showed important differences in stereotypes and self-characterizations of men and women in both countries that were obscured when looking at overall agency and communion. Our results show that gender stereotyping of oneself and others is complex and highlights the impact of culture on people's perceptions of gender.
Der brain-derived neurotrophic factor (BDNF) ist ein in jüngerer Vergangenheit vielfach untersuchter Wachstumsfaktor. Dies liegt zum einen daran, dass der BDNF mit unterschiedlichen neurologischen Erkrankungen – wie dem Morbus Parkinson – in Verbindung gebracht wird (SCALZO et al., 2010; ZUCCATO & CATTANEO, 2009), zum anderen an der Tatsache, dass für den BDNF ein entgegenwirkender Effekt der diesen neurologischen Erkrankungen zugrundeliegenden neurodegenerativen Prozesse nachgewiesen wurde (DECHANT & NEUMANN, 2002). Erkenntnisse der sportmedizinischen und sportwissenschaftlichen Forschung zeigen dabei, dass eine sportliche Betätigung zu einer vermehrten Expression des BDNF führen kann, wobei allgemein dynamische und über einen längeren Zeitraum ausgeführte Aktivitäten (bspw. Ausdauertraining) die größten positiven Effekte auf die Expression des BDNF zu haben scheinen (KNAEPEN, GOEKINT, HEYMAN & MEEUSEN, 2010). In Anbetracht der den Morbus Parkinson begleitenden Kardinalsymptome, welche Einschränkungen der motorischen Leistungsfähigkeit als Folge haben, ist jedoch gerade eine solche andauernde Aktivität eine oftmals mit diesem Patientenkollektiv nicht umzusetzende Trainingsmaßnahme. Die Stochastische Resonanztherapie (SRT), als zunächst nur passive Trainingsmaßnahme, welche über applizierte Vibrationen zu Muskelkontraktionen führt (HAGBARTH & EKLUND, 1966) wurde bereits mit einer vermehrten Expression neurotropher Faktoren bzw. des BDNF in Verbindung gebracht (HAAS, TURBANSKI, KESSLER & SCHMIDTBLEICHER, 2006). Diese Annahme beruhte dabei auf lediglich theoretischen Überlegungen, welche wissenschaftlichen jedoch noch nicht untersucht wurden. Neben der Betrachtung der SRT als potentielle Therapiemaßnahme für Parkinson-Patienten konnten interessante Forschungsarbeiten vergangener Jahre zeigen, dass ein Training unter Blutflussrestriktion (engl.: blood-flow-restriction; BFR) zu einer positiven Beeinflussung bspw. der motorischen Kraft führt, hierfür im Vergleich zu einem Hypertrophietraining jedoch deutlich geringere Intensitäten (1RM) notwendig sind (ELLEFSEN et al., 2015; FAHS et al., 2015; LAURENTINO et al., 2012). Diese Entdeckung ist dabei für Parkinson-Patienten interessant, so dass dieses Patientenklientel trotz einer geringer notwendigen Belastung adäquate Krafttrainingsreize appliziert bekommen kann.
Die Primärfragestellung der vorliegenden Studie war zum einen die Wirkung der SRT auf den BDNF (ad-hoc-Messung), zum anderen wurde der Sekundärfragestellung nachgegangen, ob durch ein 8-wöchiges SRT-Training eine Verbesserung auch funktioneller Parameter erzielt werden kann (Langzeiteffekt/-messung). Bezüglich der Sekundärfragestellung wurde im pre-post-Testdesign die Wirkung der SRT auf die isometrische Maximalkraft, die posturale Stabilität und den Timed-up-and-go-Test (TUG-Test) untersucht. Sowohl die Primär- als auch die Sekundärfragestellung beinhalteten neben der reinen SRT-Anwendung (SRT*) auch eine Integration der BFR (SRT*+BFR). Um Placebo-Effekte möglichst auszuschließen, wurde beiden Gruppen jeweils eine Kontrollgruppe gegenübergestellt.
An der Studie nahmen insgesamt 30 Personen mit Morbus Parkinson teil (Hoehn & Yahr 2-4). Im Ergebnis zeigte sich, dass – zunächst auf die Primärfragestellung (BDNF) bezogen – sowohl die SRT*-Intervention, als auch die SRT*+BFR-Intervention zu einer hochsignifikanten Erhöhung des BDNF führte. Im Intergruppenvergleich wiesen beide Interventionsgruppen im Vergleich zur KG eine sich signifikant unterscheidende Anpassung der BDNF-Expression auf. Im Vergleich beider Interventionsgruppen konnte dagegen keine unterschiedliche Beeinflussung des BDNF identifiziert werden. Bezüglich der Sekundärfragestellung konnte für die isometrische Maximalkraft lediglich für SRT*+BFR eine signifikante Kraftsteigerung nachgewiesen werden. Im Intergruppenvergleich zeigte sich diese als signifikant unterschiedlich zur Beeinflussung der isometrischen Maximalkraft in der KG, wohingegen kein Unterschied zwischen der SRT*+BFR und SRT* als auch der SRT* und der KG identifiziert werden konnte. Während für die posturale Stabilität in Parallelstellung sowohl im Intragruppen- als auch im Intergruppenvergleich keine signifikante Beeinflussung der SRT* und SRT*+BFR gemessen werden konnte, zeigte sich in Schrittstellung eine signifikante Veränderung der SRT*, wobei diese eine Verschlechterung der posturalen Stabilität darstellte. Im Intergruppenvergleich zeigte sich ein signifikanter Unterschied zwischen SRT* und SRT*+BFR, wobei SRT*+BFR zu einer Verbesserung der posturalen Stabilität geführt hat, diese jedoch keine statistische Signifikanz aufwies. SRT* und SRT*+BFR unterschieden sich im Vergleich zur KG dagegen nicht signifikant. Die Messung der Gangleistung (TUG-Test) zeigte überraschenderweise lediglich für die KG eine signifikante Verbesserung auf, wobei SRT* und SRT*+BFR ebenfalls zu einer Verbesserung im TUG-Test geführt haben, welche jedoch den Nachweis einer statistischen Signifikanz verpassten. Durch die gleichgerichtete Anpassung zeigte sich abschließend im Intergruppenvergleich keine statistisch signifikante Unterscheidung der Gruppen.
Zusammengefasst zeigte die SRT tendenziell die Möglichkeit einer positiven Beeinflussung des BDNF auf, welche durch die additive BFR leicht erhöht werden konnte. Bezüglich der motorischen Parameter ergaben sich heterogene Ergebnisse, so dass nicht von einer generellen positiven Wirkung der SRT ausgegangen werden kann. Zu beobachten war jedoch, dass die zusätzliche BFR in allen Einzeltests – wenn auch nicht immer statistisch signifikant – zu ausschließlich positiven Anpassungen geführt hat.
Background: Associations between age, concerns or history of falling, and various gait parameters are evident. Limited research, however, exists on how such variables moderate the age-related decline in gait characteristics. The purpose of the present study was to investigate the moderating effects of concerns of falling (formerly referred to as fear of falling), history of falls & diseases, and sociodemographic characteristics on changes in gait characteristics with increasing age in the elderly. Methods: In this individual participant level data re-analysis, data from 198 participants (n = 125 females) from 60 to 94 years of age were analysed (mean 73.9, standard deviation 7.7 years). Dependent variables were major spatiotemporal gait characteristics, assessed using a capacitive force measurement platform (zebris FDM-T). Age (independent variable) and the moderating variables concerns of falling (FES-I), gender/sex, history of falls and fall-related medical records, number of drugs daily taken, and body mass index were used in the statistical analysis. Hierarchical linear mixed moderation models (multilevel analysis) with stepwise (forward) modelling were performed. Results: Decreases of gait speed (estimate = −.03, equals a decrease of 0.03 m/s per year of ageing), absolute (− 1.4) and gait speed-normalized (−.52) stride length, step width (−.08), as well as increases in speed normalized cadence (.65) and gait speed variability (.15) are all age-related (each p < .05). Overall and specific situation-related concerns of falling (estimates: −.0012 to −.07) were significant moderators. History of potentially gait- and/or falls-affecting diseases accelerated the age-related decline in gait speed (−.002) and its variability (.03). History of falls was, although non-significant, a relevant moderator (in view of increasing the model fit) for cadence (.058) and gait speed (−.0027). Sociodemographics and anthropometrics showed further moderating effects (sex moderated the ageing effect on stride length, .08; height moderated the effect on the normalised stride length, .26; BMI moderated the effects on step width, .003). Conclusion: Age-related decline in spatiotemporal gait characteristics is moderated by concerns of falling, (non-significantly) by history of falls, significantly by history of diseases, and sociodemographic characteristics in 60–94 years old adults. Knowing the interactive contributions to gait impairments could be helpful for tailoring interventions for the prevention of falls. Trial registration: Re-analysis of [21–24].
Low-to-moderate quality meta-analytic evidence shows that motor control stabilisation exercise (MCE) is an effective treatment of non-specific low back pain. A possible approach to overcome the weaknesses of traditional meta-analyses would be that of a prospective meta-analyses. The aim of the present analysis was to generate high-quality evidence to support the view that motor control stabilisation exercises (MCE) lead to a reduction in pain intensity and disability in non-specific low back pain patients when compared to a control group. In this prospective meta-analysis and sensitivity multilevel meta-regression within the MiSpEx-Network, 18 randomized controlled study arms were included. Participants with non-specific low back pain were allocated to an intervention (individualized MCE, 12 weeks) or a control group (no additive exercise intervention). From each study site/arm, outcomes at baseline, 3 weeks, 12 weeks, and 6 months were pooled. The outcomes were current pain (NRS or VAS, 11 points scale), characteristic pain intensity, and subjective disability. A random effects meta-analysis model for continuous outcomes to display standardized mean differences between intervention and control was performed, followed by sensitivity multilevel meta-regressions. Overall, 2391 patients were randomized; 1976 (3 weeks, short-term), 1740 (12 weeks, intermediate), and 1560 (6 months, sustainability) participants were included in the meta-analyses. In the short-term, intermediate and sustainability, moderate-to-high quality evidence indicated that MCE has a larger effect on current pain (SMD = −0.15, −0.15, −0.19), pain intensity (SMD = −0.19, −0.26, −0.26) and disability (SMD = −0.15, −0.27, −0.25) compared with no exercise intervention. Low-quality evidence suggested that those patients with comparably intermediate current pain and older patients may profit the most from MCE. Motor control stabilisation exercise is an effective treatment for non-specific low back pain. Sub-clinical intermediate pain and middle-aged patients may profit the most from this intervention.
In memory of Edward Diener: reflections on his career, contributions and the science of happiness
(2021)
Prof. Edward (Ed) Diener (1946-2021), a pioneer in positive psychology, passed away on the 27th of April 2021 at his home in Salt Lake City, Utah (Salt Lake City Tribune, 2021). As one of the most influential psychologists of the discipline, Ed Diener pushed the boundaries of our understanding of positive psychological functioning, subjective well-being, and happiness (Layous, 2020). As one of the Top 200 most cited researchers across all disciplines and fields, he will be most remembered for founding the scientific study of subjective well-being (SWB) and happiness (Bakshi, 2019). Diener developed the concept of subjective well-being by exploring the factors that influence people's life satisfaction (Diener et al., 2017a). He studied the individual causes of subjective well-being, such as close social relationships, income, meaning and purpose, personality, and societal causes, such as economic development, low corruption and crime, and a healthy environment (Diener et al., 2018). His research has discovered both universal and culture-specific causes and consequences of SWB and influenced governmental policy (Oishi et al., 1999). In respect of his memory, the purpose of this paper is threefold: (a) to reflect upon his career journey, (b) to celebrate his significant contributions to the discipline, and (c) to provide personal reflections of those who worked closely with him over the past 50 years.
Narcissistic traits have been linked to structural and functional brain networks, including the insular cortex, however, with inconsistent findings. In this study, we tested the hypothesis that subclinical narcissism is associated with variations in regional brain volumes in insular and prefrontal areas. We studied 103 clinically healthy subjects, who were assessed for narcissistic traits using the Narcissistic Personality Inventory (NPI, 40-item version) and received high-resolution structural magnetic resonance imaging. Voxel-based morphometry was used to analyse MRI scans and multiple regression models were used for statistical analysis, with threshold-free cluster enhancement (TFCE). We found significant (p < 0.05, family-wise error FWE corrected) positive correlations of NPI scores with grey matter in multiple prefrontal cortical areas (including the medial and ventromedial, anterior/rostral dorsolateral prefrontal and orbitofrontal cortices, subgenual and mid-anterior cingulate cortices, insula, and bilateral caudate nuclei). We did not observe reliable links to particular facets of NPI-narcissism. Our findings provide novel evidence for an association of narcissistic traits with variations in prefrontal and insular brain structure, which also overlap with previous functional studies of narcissism-related phenotypes including self-enhancement and social dominance. However, further studies are needed to clarify differential associations to entitlement vs. vulnerable facets of narcissism.
In sports and clinical settings, roller massage (RM) interventions are used to acutely increase range of motion (ROM); however, the underlying mechanisms are unclear. Apart from changes in soft tissue properties (i.e., reduced passive stiffness), neurophysiological alterations such as decreased spinal excitability have been described. However, to date, no study has investigated both jointly. The purpose of this trial was to examine RM’s effects on neurophysiological markers and passive tissue properties of the plantar flexors in the treated (ROLL) and non-treated (NO- ROLL) leg. Fifteen healthy individuals (23 ± 3 years, eight females) performed three unilateral 60-s bouts of calf RM. This procedure was repeated four times on separate days to allow independent assessments of the following outcomes without reciprocal interactions: dorsiflexion ROM, passive torque during passive dorsiflexion, shear elastic modulus of the medial gastrocnemius muscle, and spinal excitability. Following RM, dorsiflexion ROM increased in both ROLL (+19.7%) and NO-ROLL (+13.9%). Similarly, also passive torque at dorsiflexion ROM increased in ROLL (+15.0%) and NO-ROLL (+15.2%). However, there were no significant changes in shear elastic modulus and spinal excitability (p > 0.05). Moreover, significant correlations were observed between the changes in DF ROM and passive torque at DF ROM in both ROLL and NO-ROLL. Changes in ROM after RM appear to be the result of sensory changes (e.g., passive torque at DF ROM), affecting both rolled and non-rolled body regions. Thus, therapists and exercise professionals may consider applying remote treatments if local loading is contraindicated.
Wörter flüssig und genau lesen zu können ist ein wichtiger Meilenstein beim Lesenlernen, den jedoch nicht alle Kinder erreichen. Schwachen Leser/innen bereitet es oft Schwierig-keiten, den Übergang vom buchstabenweisen Einlesen hin zur visuellen Worterkennung durch orthografische Vergleichsprozesse anhand größerer (sub-)lexikalischer Einheiten zu schaffen. Dabei ermöglicht die Silbe Kindern, die im Deutschen lesen lernen, den Einstieg in orthografische Vergleichsprozesse. Vor diesem Hintergrund untersuchte diese Replikations-studie in einem experimentellen Prä-Post-Design die Wirksamkeit eines silbenbasierten Le-setrainings auf die visuelle Worterkennung und das Leseverständnis von Zweitklässler/innen. Dazu wurden 101 Kinder, deren Worterkennungsleistung in einem standardisierten Lesetest im Vergleich zur Klassennorm unter dem Mittelwert lag, randomisiert der Experimental- oder Wartekontrollgruppe zugewiesen. Die Ergebnisse linearer Modelle nach Abschluss des 24 Sitzungen umfassenden Kleingruppentrainings zeigen signifikante Verbesserungen der orthografischen Vergleichsprozesse in der Experimentalgruppe. Demnach gelang es Kindern, die das Training des wiederholten Lesens und Segmentierens frequenter Silben erhalten hat-ten, Wörter schneller und genauer zu erkennen. Dieser Befund stellt einen weiteren Beleg für die Wirksamkeit des Trainings zur Förderung der Erkennung geschriebener Wörter dar.
School psychologists are asked to systematically evaluate the effects of their work to ensure quality standards. Given the different types of methods applied to different users of school psychology measuring the effects of school psychological services is a complex task. Thus, the focus of our scoping review was to systematically investigate the state of past research on the measurement of the effects of school psychological services published between 1998 and 2018 in eight major school psychological journals. Of the 5,048 peer-reviewed articles published within this period, 623 were coded by two independent raters as explicitly refering to school psychology or counseling in the school context in their titles or abstracts. However, only 22 included definitions of effects of school psychological services or described outcomes used to evaluate school psychological services based on full text screening. These findings revealed that measurement of the effects of school psychological services has not been a focus of research despite its' relevance in guidelines of school psychological practice.
Although resilience is a multi-level process, research largely focuses on the individual and little is known about how resilience may distinctly present at the group level. Even less is known about subjective conceptualizations of resilience at either level. Therefore, two studies sought to better understand how individuals conceptualize resilience both as an individual and as a group. Study 1 (N = 123) experimentally manipulated whether participants reported on either individual or group-based responses to real stressors and analysed their qualitative responses. For individual responses, subjective resilience featured active coping most prominently, whereas social support was the focus for group-based responses. As these differences might be attributable to the different stressors people remembered in either condition, Study 2 (N = 171) held a hypothetical stressor (i.e., natural disaster) constant. As expected, resilience at the group level emphasized maintaining group cohesion. Surprisingly, the group condition also reported increased likelihood to engage in blame, denial, and behavioural disengagement. Contrary to expectations, participants in the individual condition reported stronger desire to seek out new groups. The combined findings are discussed within the framework of resilience and social identity and highlight the necessity of accounting for multiple levels and subjective conceptualizations of resilience.
Disentangling age and schooling effects on inhibitory control development: An fNIRS investigation
(2021)
Children show marked improvements in executive functioning (EF) between 4 and 7 years of age. In many societies, this time period coincides with the start of formal school education, in which children are required to follow rules in a structured environment, drawing heavily on EF processes such as inhibitory control. This study aimed to investigate the longitudinal development of two aspects of inhibitory control, namely response inhibition and response monitoring and their neural correlates. Specifically, we examined how their longitudinal development may differ by schooling experience, and their potential significance in predicting academic outcomes. Longitudinal data were collected in two groups of children at their homes. At T1, all children were roughly 4.5 years of age and neither group had attended formal schooling. One year later at T2, one group (P1, n = 40) had completed one full year of schooling while the other group (KG, n = 40) had stayed in kindergarten. Behavioural and brain activation data (measured with functional near-infrared spectroscopy, fNIRS) in response to a Go/No-Go task and measures of academic achievement were collected. We found that P1 children, compared to KG children, showed a greater change over time in activation related to response monitoring in the bilateral frontal cortex. The change in left frontal activation difference showed a small positive association with math performance. Overall, the school environment is important in shaping the development of the brain functions underlying the monitoring of one own's performance.
Defensive decision making occurs when the decision-maker does not choose the option that is in the best interest of an organization or client but instead chooses a less effective but lower risk alternative that protects him or her in case something goes wrong. Such decisions are widespread across occupations and sectors and cause substantive damage to organizations. In a first step, we developed a scale to measure defensive decision making and test its validity. The scale covers two distinct but related dimensions: avoidance and approach. In a subsequent, two-wave study, we examined the antecedents of defensive decision making using conservation of resources theory as a theoretical lens. An environment characterized by higher psychological safety can reduce resource depletion and diminishes defensive decision making. In contrast, job insecurity can result in a threat to personal resources, which increases the likelihood that employees choose defensive decisions.
Practitioners points:
People engage in defensive decision making as a means to protect their own resources from exhaustion.
Organizations can reduce the number of defensive decisions by enhancing situational resources such as psychological safety.
The short and preliminarily validated scale we developed can be used to make defensive decisions visible in organizations.
Mexico’s role in the US-Central American migration regime is threefold: not only is it a country of origin, and a transit country, but also increasingly becoming a receiving country for migrants who flee from violence, insecurity and poverty. The Mexican state responds with detention enforcement. Clinical research usually puts emphasise on the negative impact of detention enforcement on the detainees‘ mental health. Yet, it often disregards the spatial configurations of detention centres and their socio-political context. This study aims to fill this gap by analysing how such factors create harmful environments that affect both the detainees‘ mental health and their social life in Mexico’s migration detention centres. The study’s mixed method approach builds on semi-structured interviews with a sample of N = 56 migrants of diverse nationalities and varying socioeconomic status of whom 22 were still detained while 34 had been released. The interviews include the Torturing Environment Scale (TES), a novel instrument for the analysis of detention environments, as well as clinical psychological measures of emotional distress. Additional n = 10 in-depth interviews with human rights advocates to explore the interconnections between the detention environments, their impact on mental health, and Mexican migration politics. Facultative counter-mappings of the detention centres complement the interviews. Without exception, all interviews of detainees underline that the manipulation of detention conditions creates torturing environments that cause harm to basic physiological and psychological needs. A comparison between detained vs. released interviewees revealed lasting feelings of fear and shame. The study emphasises that immigration detention immobilises migrants in a necropolitical limbo, which destroys hope as much as human integrity. It indicates that detention is part of deterrence politics, which perpetuates harm and inequality through detention and deportation. Highlighting structural human rights violations, the findings stress the need to review current migration policies.