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The CBM experiment will investigate heavy-ion collisions at beam energies from 8 to 45 AGeV at the future accelerator facility FAIR. The goal of the experiment is to study the QCD phase diagram in the vincinity of the QCD critical point. To do so, CBM aims at measuring rare probes among them open charm. In order to identify those rare and short lived particles despite the rich combinatorial background generated in heavy ion collisions, a micro vertex detector (MVD) providing an unprecedented combination of high rate capability and radiation hardness, very light material budget and excellent granularity is required. In this work, we will discuss the concept of this detector and summarize the status of the R&D.
Does linguistic rhythm matter to syntax, and if so, what kinds of syntactic decisions are susceptible to rhythm? By means of two recall-based sentence production experiments and two corpus studies – one on spoken and one on written language – we investigated whether linguistic rhythm affects the choice between introduced and un-introduced complement clauses in German. Apart from the presence or absence of the complementiser dass (‘that’), these two sentence types differ with respect to the position of the tensed verb (verb-final/verb-second). Against our predictions, that were based on previously reported rhythmic effects on the use of the optional complementiser that in English, the experiments fail to obtain compelling evidence for rhythmic/prosodic influences on the structure of complement clauses in German. An overview of pertinent studies showing rhythmic influences on syntactic encoding suggests these effects to be generally restricted to syntactic domains smaller than a clause. We assume that, in the course of language production, initially, clause level syntactic projections are specified; their specification is in fact the prerequisite for phonological encoding to start. Consequently, prosodic effects may only touch upon the lower level categories that are to be integrated into the clausal projection, but not upon the syntactic makeup of the higher order projection itself.
In this study, we investigated the impact of two constraints on the linear order of constituents in German preschool children’s and adults’ speech production: a rhythmic (*LAPSE, militating against sequences of unstressed syllables) and a semantic one (ANIM, requiring animate referents to be named before inanimate ones). Participants were asked to produce coordinated bare noun phrases in response to picture stimuli (e.g., Delfin und Planet, ‘dolphin and planet’) without any predefined word order. Overall, children and adults preferably produced animate items before inanimate ones, confirming findings of Prat-Sala, Shillcock, and Sorace (2000). In the group of preschoolers, the strength of the animacy effect correlated positively with age. Furthermore, the order of the conjuncts was affected by the rhythmic constraint, such that disrhythmic sequences, i.e., stress lapses, were avoided. In both groups, the latter result was significant when the two stimulus pictures did not vary with respect to animacy. In sum, our findings suggest a stronger influence of animacy compared to rhythmic well-formedness on conjunct ordering for German speaking children and adults, in line with findings by McDonald, Bock, and Kelly (1993) who investigated English speaking adults.
Reduplicative words like chiffchaff or helter-skelter are part of ordinary language use yet most often found in substandard registers in which attitudinal and expressive meaning components are iconically foregrounded. In a rating experiment using nonwords that either conform to, or deviate from, conventional reduplicative patterns in German, the present study identified affective meaning dimensions, judgments of familiarity and esthetic evaluations of sound qualities associated with such words. In a subsequent recall test, we examined
the respective mnemonic potential of the different types of reduplication. Results suggest that, in the absence of semantic content, reduplicative forms are inherently associated with
several affective meaning associations that are generally considered positive. Two types of reduplicative patterns, namely full reduplication and [i-a]-vowel-alternating reduplication,
boost these positive effects to a particularly pronounced degree, leading to an increase in perceived euphony, funniness, familiarity, appreciation, and positive belittling (cuteness) and, at the same time, a decrease in arousal. These two types also turn out to be particularly memorable when compared both to other types of reduplication and to non-reduplicative structures. This study demonstrates that reduplicative morphology may in and of itself, that is, irrespective of the phonemic and the semantic content, contribute to the affective meaning and esthetic evaluation of words.