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This paper discusses the NP-internal agreement strategies observed in an empirical (corpus based) study of Portuguese, and proposes an analysis which is formalized in the framework of Head-Driven Phrase Structure Grammar (HPSG). The empirical study suggests that what were previously thought to be rare or non-existent strategies occur with surprising frequency. Capturing these strategies poses problems for many standard approaches to agreement. The formalization shows how they can be captured with a relatively conservative extension of the existing HPSG theory of agreement.
This paper focuses on passive constructions in Dutch. Specifically, we focus on worden, as well as krijgen passives in Dutch, for which we propose a uniform, raising analysis in HPSG. We also show that such an analysis can be carried over to account for passives cross-linguistically. Specifically, we look at corresponding structures in German and show that there is no need for a dual raising and control analysis for the German "agentive" (werden) and the German "dative" (kriegen) passives, respectively, as has been proposed in Müller (2002) and Müller (2003).
In Pollard & Sag (1994) and in Ginzburg & Sag (2000) phrases are either headed or non-headed, and if they are headed, there is a relation of selection between the daughters: either the head daughter selects its non-head sister(s), as in the phrases of type 'head-complements', or the non-head daughter selects its head sister, as in the phrases of type 'head-adjunct'. In the non-headed phrases, by contrast, there is no selection; in a coordinate structure, for instance, there is no relation of selection, neither between the conjuncts nor between the conjunction and the conjuncts. The central claim of this paper is that there are also phrases which are headed but in which neither daughter selects the other. To model such phrases I propose a new type, called 'head-independent'. Its properties are spelled out and its range of application is illustrated with various examples, including asymmetric coordination and apposition.
This paper provides a treatment of Polish Plural Comitative Constructions in the paradigm of HPSG in the tradition of Pollard and Sag (1994). Plural Comitative Constructions (PCCs) have previously been treated in terms of coordination, complementation and adjunction. The objective of this paper is to show that PCCs are neither instances of typical coordinate structures nor of typical complement or adjunct structures. It thus appears difficult to properly describe them by means of the standard principles of syntax and semantics. The analysis proposed in this paper accounts for the syntactic and semantic properties of PCCs in Polish by assuming an adjunction-based syntactic structure for PCCs, and by treating the indexical information provided by PCCs not as subject to any inheritance or composition, but as a result of applying a set of principles on number, gender and person resolution that also hold for ordinary coordinate structures.
Persian free relatives
(2005)
Free relatives (FRs) in Persian are Unbounded Dependency Constructions, containing gaps or resumptive pronouns (RPs). In some positions only gaps are allowed, and in some other positions only RPs. The structure of Persian FRs is bipartite, containing two constituents: a phrasal part and a sentential. Persian FRs are sensitive to the matching effect and show distinct properties from noun phrases, ordinary relative clauses, and interrogative complements. This paper proposes a unified HPSG account which assumes that the phrasal part of a FR is the head and the filler at the same time. The propped approach is presented in two versions (with and without traces) and can take care of the dependency between the gap or the RP and the licencing constituent with a truly single mechanism.
Algorithmic approaches to anaphor resolution are known to benefit substantially from syntactic disjoint reference filters. Typically, however, there is a considerable gap between the scope of the formal model of grammar employed for deriving referential evidence and its implementation. While accounting for many subtleties of language, such formal models at most partially address the algorithmic aspects of referential processing. This paper investigates the issue of implementing syntactic disjoint reference for robust anaphor resolution. An algorithmic account of binding condition verification will be developed that, on one hand, captures the theoretical subtleties, and, on the other hand, exhibits computational efficiency and fulfils the robustness requirements. Taking as input the potentially fragmentary parses of a robust state-of-the-art parser, the practical performance of this algorithm will be evaluated with respect to the task of anaphor resolution and shown to be nearly optimal.
We present a method for automatic RMRS semantics construction from dependency structures, following the semantic algebra of Copestake et al. (2001). We have applied this method to a subset of the TIGER Dependency Bank for German (Forst et al., 2004) to obtain a semantic treebank for (HPSG) parser evaluation. We describe the semantics construction mechanism and give evaluation figures from manual validation of the treebank. These indicate high precision of the automatic RMRS construction process.
This contribution is concerned with integrating the phenomenon of selectional restrictions in HPSG. Firstly, the question of treating selectional restrictions purely in the semantic module is tackled, as there are some contextual (or pragmatic) influences, which can repair the ill-formedness of violated selectional restrictions. Secondly, we present existing approaches to selectional restrictions within the framework and, lastly, make our own proposal which describes the subject as part of the semantics-pragmatics interface. In particular, we show how a semantic ontology can be integrated.
HPSG accounts of filler-gap dependencies hold considerable potential for explaining the cross-linguistic variation in unbounded dependency constructions (UDCs), specifically filler-gap dependencies. This potential comes from the SLASH specifications that are posited in all nodes along the extraction path (the path between filler and gap). However, as Hukari and Levine (1994, 1995, 1996) have observed, the HPSG analysis presented by Pollard and Sag (1994) fails to embody the generalizations required in order to explain key universal properties of UDCs, in particular the ˋregistration' of such dependencies in cases of subject- and adverb-extraction. This demonstration led Bouma et al. (2001) to propose a revised UDC analysis that avoids these difficulties by ˋthreading' the SLASH specfications through all heads within an extraction domain. However, Levine (2002) points out that this analysis encounters a new difficulty concerning the interaction of extraction and coordination. This paper revisits these issues, arguing that a small modification of the BMS analysis provides a solution to the important problem observed by Levine.
This paper investigates the binding of pronouns and reflexives in picture noun phrases, and focuses on data showing that reflexives and pronouns are not in complementary distribution in picture NPs with possessors. In particular, we discuss data showing that whereas reflexives can take either the possessor or the subject of the sentence as antecedent, pronouns are restricted to an antecedent other than the possessor phrase. We suggest that this asymmetry can be straightforwardly explained if we assume that (1) the possessor of a picture NP is not part of the head noun's argument structure and (2) Binding Theory is stated over dependents structure, the representation encompassing both a head's argument structure and other phrases dependent on it in various ways. If the possessor of a picture NP (PNP) is not part of the head's argument structure, it follows that reflexives in PNPs with possessors will be exempt from Binding Theory, which paves the way for an analysis of the reflexive data. Furthermore, we also show that if BT is regarded as defined over dependents structure, it follows that a pronoun in a picture NP with a possessor must be disjoint from that possessor phrase.
Remarks on binding theory
(2005)
We propose some reformulations of binding principle A that build on recent work by Pollard and Xue, and by Runner et al. We then turn to the thorny issue of the status of indices, in connection with the seemingly simpler Principle B. We conclude that the notion of index is fundamentally incoherent, and suggest some possible approaches to eliminating them as theoretical primitives. One possibility is to let logical variables take up the explanatory burden borne by indices, but this turns out to be fraught with difficulties. Another approach, which involves returning to the idea that referentially dependent expressions denote identity functions (as proposed, independently, by Pollard and Sag and by Jacobson) seerms to hold more promise.
It has been commonly assumed since Chomsky (1981) that the distribution of reflexive pronouns is subject to Binding Condition A. Reinhart and Reuland (1993) formulate Condition A in terms of the notion of syntactic predicate. The proposal I will develop in this paper is to factor out semantic and syntactic conditions on the occurrence of reflexive pronouns and to reduce them to independently motivated semantic and syntactic mechanisms. The semantic part is attributed to a theory of semantic composition recently developed by Chung and Ladusaw (2004), while the syntactic residue falls into the proper characterization of syntactic chains, as proposed by Reinhart and Reuland (1993) and Reuland (2001). To the extent that this approach is successful, Binding Condition A is rendered superfluous.
The process of turning a hand-written HPSG theory into a working computational grammar requires complex considerations. Two leading platforms are available for implementing HPSG grammars: The LKB and TRALE. These platforms are based on different approaches, distinct in their underlying logics and implementation details. This paper adopts the perspective of a computational linguist whose goal is to implement an HPSG theory. It focuses on ten different dimensions, relevant to HPSG grammar implementation, and examines, compares, and evaluates the different means which the two approaches provide for implementing them. The paper concludes that the approaches occupy opposite positions on two axes: faithfulness to the hand-written theory and computational accessibility. The choice between them depends largely on the grammar writer's preferences regarding those properties.
Order domains were originally proposed to deal with constituent order, but have recently been concerned with more than just linearization. This paper seeks to contribute to this discussion by considering the possibility of analysing word forms in terms of order domains. We focus on the distribution of the English relative and interrogative pronouns who and whom. It is shown that a small number of constraints can accommodate the seemingly complex body of data. In particular, a linearization-based constraint can provide a straightforward account for the quite puzzling distribution which who and whom show in one of the register types.
In this paper, we claim that the filler-gap linkage in Korean UDCs needs to be handled at the level of syntax and that unbounded dependencies represented by traces, resumptive pronouns, and resumptive reflexives in Korean can be simply captured - without posing any extra mechanisms - in the traditional HPSG analysis of UDCs following Pollard and Sag (1994). It is because in HPSG traces are not all required to have the same feature, unlike in other movement-based approaches including the minimalist program and GB theory. In addition, we argue that the three kinds of Korean UDC elements appearing in gap positions do not form separate categories from their corresponding forms appearing in non-UDCs based on the same semantic and pragmatic properties such as logophoricity and contrastiveness. We also investigate some controversial issues of island constraints and strong crossover with respect to filler-gap linkage in Korean UDCs.
This paper presents an analysis of constructions involving the l-form of the verb in Polish, including primarily the past tense, the conditional mood, and the future tense. Previous approaches have attempted to treat these uniformly as auxiliary verb constructions. We argue against a unified treatment, however, in light of synchronic and diachronic evidence that indicates that only the future tense and the conditional still involve auxiliaries in modern Polish. We show that the past tense is now a simple tense, although the l-forms appear in combination with agreement affixes that can appear in different places in the sentence. We provide an account of the common linearization properties of the past tense markings and the conditional auxiliary. We present a detailed HPSG analysis of the past tense construction that relies on the introduction of two interacting agreement features. We then discuss the consequences of our proposals for the analysis of the conditional and future auxiliary constructions, and finally, we offer a treatment of constructions involving inflected complementizers in Polish.
In this paper, I first make an observation that there is a certain parallelism in the scope interpretation possibilities of adverbs and quantifiers with respect to different types complex predicates in Japanese, drawing on a comparison of the light verb construction and the causative construction. I will then argue that previous approaches to complex predicates in Japanese in the lexicalist tradition (Matsumoto 1996; Manning et al. 1999) fail to capture this generalization successfully. Finally, building on a novel approach to syntax/semantics interface in HPSG by Cipollone (2001), I develop an analysis of the semantic structure of complex predicates that accounts for the empirical observation straightforwardly.
We argue here for a lexicalist analysis of the Korean copula (following Kim, Sells and Wescoat (2004)), on the basis of different properties of sequences of noun-plus-copula, which shows word-like behavior, in contrast to noun and negative copula, which are independent syntactic units. The interactions of these items with various copy constructions brings out their clear differences. The analysis is formalized in HPSG using Lexical Sharing, from Wescoat (2002).
According to the Projection Principle (Chomsky 1981), expletives have no semantic content and thus cannot occur in theta-marked positions. However, there are many examples where expletive it appears as a direct object, in violation of the Projection Principle. The various attempts that have been made to account for such cases (e.g. the case-based analysis of Authier (1991), the predication analysis of Rothstein (1995), and the Specifier analysis of Stroik (1991, 1996)) all posit movement of the expletive from a non-theta marked position to direct object position. However, these analyses have so far been unsuccessful in capturing several important contrasts, e.g. variable optionality of the expletive it. This paper argues that such contrasts (and the complex behavior of expletive it more generally) follow straightforwardly from a lexicalist, constraint-based analysis in which lexical information and independently motivated constraints interact in subtle ways.
Focusing on the examples of multiple degree modification, this paper argues that the class of degree expressions in English is syntactically and semantically diverse, subdivided both according to the semantic effects of its members and according to the extent to which they permit, and participate in, multiple layers of modification. We argue that these two factors are linked, and result in (at least) a three-way distinction between ˋtrue degree morphemes', which map gradable adjectives to properties of individuals and combine with their arguments in a Head-Specifier structure; ˋintensifiers', which are syntactic and semantic modifiers of properties constructed out of gradable adjectives; and ˋscale modifiers', which are also syntactic and semantic modifiers, but which combine with ˋbare' gradable adjectives (relations between individuals and degrees) rather than properties formed out of gradable adjectives.
The present paper investigates a certain subset of clause linkage phenomena and develops a constraint-based account to the empirical fact that clauses need to be distinguished with respect to their degree of integratedness into a potential matrix clause. Considering as example German, it is shown that the generally assumed twofold distinction between main and subordinate clauses (or root and embedded clauses) does not suffice to deal with the presented data. It is argued that the discussed linkage phenomena originate from syntactic, semantic and pragmatic properties of the clauses involved, and should hence be encoded in grammar.
The paper reviews basic patterns of reflexive binding in Norwegian, and explores a possible implementation of them in an HPSG grammar using the LKB platform. Norwegian has two reflexive elements, with distinct constraints and corresponding 'anti-binding' effects; they can cooccur but also occur independently. As over-all strategy for resolving reflexive binding we use one resembling the 'slash' procedure for wh-dependencies. Binding constraints are imposed partly through lexical specification, partly through phrasal combination rules. Challenges are noted residing in the possibility for sentences to contain an unbounded number of reflexives.
We examine how a large-scale computational grammar can account for the complex nature of Japanese verbal compounds. Previous computational Japanese grammars have tried to avoid the problem by simple solutions such as enumerating as many verbal compounds in the lexicon as possible. In contrast, we develop the analysis that is linguistically adequate and computationally tractable and thus meets the requirement of a syntactically and semantically precise natural language processing of Japanese like Bond et al. (2005). Our analysis distinguishes between two kinds of verbal compounds: syntactic compounds, which are fully productive; and lexical compounds, which are of varying productivity.
We present a novel well-formedness condition for underspecified semantic representations which requires that every correct MRS representation must be a net. We argue that (almost) all correct MRS representations are indeed nets, and apply this condition to identify a set of eleven rules in the English Resource Grammar (ERG) with bugs in their semantics component. Thus we demonstrate that the net test is useful in grammar debugging.
On binding domains
(2005)
In this paper I want to explore reasons for replacing Binding Theory based on the anaphor-pronoun dichotomy by a Binding Theory allowing more domains restricting/defining anaphoric dependencies. This will, thus, have consequences for the partitioning of anaphoric elements, presupposing more types of 'anaphors'/'pronouns' than standard Binding Theory offers us.
The Grammar Matrix is a resource for linguists writing grammars of natural languages; however, up to this point it has not included support for coordination. In this paper, we survey the typological range of coordination phenomena in the world's languages, then detail the support, both syntactic and semantic, for those phenomena in the Grammar Matrix. Furthermore, we describe the concept of a Matrix module and our software that enables grammar writers to easily produce an extensible starter grammar.
Syncretism in German: A unified approach to underspecification, indeterminacy, and likeness of case
(2005)
In this paper I address the phenomenon of syncretism in German and show how Flickinger (2000)'s approach to related issues in English can be adapted to provide a compact, disjunction-free representation of German nominal paradigms by means of combined case/number/gender type hierarchies. In particular, I will discuss the issue of case identity constraints in German coordinate structures, which has so far prevented successful application of Flickinger's proposal to German, and show how likeness constraints targetting individual inflectional dimensions of a combined type hierarchy can be expressed by means of typed lists that abstract out the relevant dimension.
I further show that current type-based approaches to feature neutrality are unable to combine the treatment of this phenomenon with the virtues of underspecification. I will then propose a revised organisation of the inflectional type hierarchies suggested by Daniels (2001), drawing on a systematic distinction between inherent and external (case) requirements.
This paper proposes a distinct approach to local binding effects for reflexives and pronominals in English whereby the nature of local binding domains is a by-product of the incremental interpretation of syntactic derivations (Uriageraka 1999, Chomsky 2000, 2001), emphasizing the role of the Conceptual /Intentional interface and the computational system (i.e. bare output conditions) in shaping general principles of grammars. A significant development of the Minimalist framework is the proposal that derivations operate through phases or multiple spell outs, which allows to reduce the strict cyclicity of derivations, and related locality effects of movement, to interface (bare output) conditions and economy conditions. In this paper I propose that incremental interpretation can further capture local binding domains effects of conditions A and B of Chomsky's (1981, 1986) Binding Theory. Basically, local binding domains are shown to correspond to accessible phase domains. Our proposal hence contrasts with standard analyses (e.g. Reinhart and Reuland 1993, Pollard and Sag 1992) that define co-argumenthood as the core factor from which binding conditions are developed. Our proposal also provides a new perspective on the core contrasts between A-chain and A-bar chain w.r.t. binding and scope reconstruction effects and argues that checking of the uninterpretable feature Case is what defines potential phase domains.
In this paper we argue that at least for some languages, when there are suitable o-commanders of its selectional domain, a reflexive in the bottom of its obliqueness hierarchy escapes exemption via a reshuffling of its local binding domain. The outcome of such reshuffling is that the local domain extends to include o-commanders of the reflexive in the subcategorization domain immediately upstairs, that is in the domain whose head predicator directly subcategorizes the domain headed by the predicator directly subcategorizing the reflexive.
In this paper we present a proposal to integrate pragmatic information, both from the preceding discourse and the extra-linguistic context, in the grammar. We provide an analysis of elliptical fragments according to how they are anchored to the context and the kind of resolution they require. We also present an alternative view about the syntax of fragments.
I examine the semantic contrasts exhibited by argument/oblique alternations (argument realization alternations where one or more participants may be realized either as a direct argument or an oblique). Previous HPSG accounts of these have proposed that alternating verbs are ambiguous, where each variant has a structured semantics that makes different participants more or less structurally prominent in the semantic representation. I argue that such accounts fail to capture the full richness of the contrasts exhibited by such alternations, and propose instead a model that derives alternations from the lexical entailments each verb associates with the alternating participant.
As has been shown in other Polynesian languages, in Tongan, adnominal elements can modify incorporated nouns in the noun incorporation construction. Two analysis are considered in this paper for understanding this construction within HPSG. The first, lexical sharing (Kim and Sells, this volume), views the verbs that include incorporated nouns as being single words corresponding to two syntactic atoms. However, this analysis makes incorrect predictions on the transitivity of incorporation clauses. A second analysis, extending Malouf (1999), views these words as verbs, but with some of the combinatorial properties of nouns. This offers both a better account of the data, and preserves the more restrictive theory of the morphology-syntax interface.
Georgian is a language allowing reflexives to be marked by ergative. The subject use of the Georgian reflexive phrase was first documented with causative verbs by Asatiani (1982). The later works such as (Amiridze and Everaert, 2000), (Amiridze, 2003), (Amiridze, 2004) discuss the use with object-experiencer verbs and transitive verbs on non-agentive reading. The present paper offers the first hand data on subject uses of the Georgian reflexive phrase with transitive verbs on their agentive reading in special contexts (such as a twin context, Madame Tussaud context, etc.) which are problematic for the Binding Theory of Chomsky (1981) as well as for the Reflexivity Theory of Reinhart and Reuland (1993). The data could be accounted for within the approach developed in (Reuland, 2001). However, the subject uses of the Georgian reciprocal ertmanet- leave the issue of subject anaphors open.
This paper discusses the nature of habits in the use of languages. It is well-known that the habits of one's first language can influence the acquisition of a second language. This paper discusses the less well-known phenomenon of how an acquired second language can influence one's first language, and explains this influence by reference to the nature of communicative behavior.
This paper discusses the typology of focus structure types (variation of information structuring in the clause) and how information structure can be used to explain all of the word order patterns in Chinese without reference to grammatical relations.
Low- dimensional and speaker-independent linear vocal tract parametrizations can be obtained using the 3-mode PARAFAC factor analysis procedure first introduced by Harshman et al. (1977) and discussed in a series of subsequent papers in the Journal of the Acoustical Society of America (Jackson (1988), Nix et al. (1996), Hoole (1999), Zheng et al. (2003)). Nevertheless, some questions of importance have been left unanswered, e.g. none of the papers using this method has provided a consistent interpretation of the terms usually referred to as "speaker weights". This study attempts an exploration of what influences their reliability as a first step towards their consistent interpretation. With this in mind, we undertook a systematic comparison of the classical PARAFAC1 algorithm with a relaxed version, of it, PARAFAC2. This comparison was carried out on two different corpora acquired by the articulograph, which varied in vowel qualities, consonantal contexts, and the paralinguistic features accent and speech rate. The difference between these statistical approaches can grossly be described as follows: In PARAFAC1, observation units pertain to the same set of variables and the observation units are comparable. In PARAFAC2, observations pertain to the same set of variables, but observation units are not comparable. Such a situation can be easily conceived in a situation such as we are describing: The operationalization we took relies on the comparability of fleshpoint data acquired from different speakers, which need not be a good assumption due to influences like sensor placement and morphological conditions.
In particular, the comparison between the two different approaches is carried out by means of so-called "leverages" on different component matrices originating in regression analysis, calculated as v = diag(A(A A)−1A ) and delivering information on how "influential" a particular loading matrix is for the model. This analysis could potentially be carried out component by component, but we confined ourselves to effects on the global factor structure. For vowels, the most influential loadings are those for the tense cognates of non-palatal vowels. For speakers, the most prominent result is the relative absence of effects of the paralinguistic variables. Results generally indicate that there is quite little influence of the model specification (i.e. PARAFAC1 or PARAFAC2) on vowel and subject components. The patterns for the articulators indicate that there are strong differences between speakers with respect to the most influential measurement as revealed by PARAFAC2: In particular, the most influential y-contribution is the tongue-back for some talkers and the tongue-dorsum for other speakers. With respect to the speaker weights, again, the leverage patterns are very similar for both PARAFAC-versions. These patterns converge with the results of the loading plots, where the articulator profiles seem to be most altered by the use of PARAFAC2. These findings, in general, are interpreted as evidence for the reliability of the PARAFAC1 speaker weights.
This work investigates laryngeal and supralaryngeal correlates of the voicing contrast in alveolar obstruent production in German. It further studies laryngealoral co-ordination observed for such productions. Three different positions of the obstruents are taken into account: the stressed, syllable initial position, the post-stressed intervocalic position, and the post-stressed word final position. For the latter the phonological rule of final devoicing applies in German. The different positions are chosen in order to study the following hypotheses:
1. The presence/absence of glottal opening is not a consistent correlate of the voicing contrast in German.
2. Supralaryngeal correlates are also involved in the contrast.
3. Supralaryngeal correlates can compensate for the lack of distinction in laryngeal adjustment.
Including the word final position is motivated by the question whether neutralization in word final position would be complete or whether some articulatory residue of the contrast can be found.
Two experiments are carried out. The first experiment investigates glottal abduction in co-ordination with tongue-palate contact patterns by means of simultaneous recordings of transillumination, fiberoptic films and Electropalatography (EPG). The second experiment focuses on supralaryngeal correlates of alveolar stops studied by means of Electromagnetic Articulography (EMA) simultaneously with EPG. Three German native speakers participated in both recordings. Results of this study provide evidence that the first hypothesis holds true for alveolar stops when different positions are taken into account. In fricative production it is also confirmed since voiceless and voiced fricatives are most of the time realised with glottal abduction. Additionally, supralaryngeal correlates are involved in the voicing contrast under two perspectives. First, laryngeal and supralaryngeal movements are well synchronised in voiceless obstruent production, particularly in the stressed position. Second, supralaryngeal correlates occur especially in the post-stressed intervocalic position. Results are discussed with respect to the phonetics-phonology interface, to the role of timing and its possible control, to the interarticulatory co-ordination, and to stress as 'localised hyperarticulation'.
This special issue of the ZAS Papers in Linguistics contains a collection of papers of the French-German Thematic Summerschool on "Cognitive and physical models of speech production, and speech perception and of their interaction".
Organized by Susanne Fuchs (ZAS Berlin), Jonathan Harrington (IPdS Kiel), Pascal Perrier (ICP Grenoble) and Bernd Pompino-Marschall (HUB and ZAS Berlin) and funded by the German-French University in Saarbrücken this summerschool was held from September 19th till 24th 2004 at the coast of the Baltic Sea at the Heimvolkshochschule Lubmin (Germany) with 45 participants from Germany, France, Great Britain, Italy and Canada. The scientific program of this summerschool that is reprinted at the end of this volume included 11 key-note presentations by invited speakers, 21 oral presentations and a poster session (8 presentations). The names and addresses of all participants are also given in the back matter of this volume.
All participants was offered the opportunity to publish an extended version of their presentation in the ZAS Papers in Linguistics. All submitted papers underwent a review and an editing procedure by external experts and the organizers of the summerschool. As it is the case in a summerschool, papers present either works in progress, or works at a more advanced stage, or tutorials. They are ordered alphabetically by their first author's name, fortunately resulting in the fact that this special issue starts out with the paper that won the award as best pre-doctoral presentation, i.e. Sophie Dupont, Jérôme Aubin and Lucie Ménard with "A study of the McGurk effect in 4 and 5-year-old French Canadian children".
It has been shown that visual cues play a crucial role in the perception of vowels and consonants. Conflicting consonantal stimuli presented in the visual and auditory modalities can even result in the emergence of a third perceptual unit (McGurk effect). From a developmental point of view, several studies report that newborns can associate the image of a face uttering a given vowel to the auditory signal corresponding to this vowel; visual cues are thus used by the newborns. Despite the large number of studies carried out with adult speakers and newborns, very little work has been conducted with preschool-aged children. This contribution is aimed at describing the use of auditory and visual cues by 4 and 5-year-old French Canadian speakers, compared to adult speakers, in the identification of voiced consonants. Audiovisual recordings of a French Canadian speaker uttering the sequences [aba], [ada], [aga], [ava], [ibi], [idi], [igi], [ivi] have been carried out. The acoustic and visual signals have been extracted and analysed so that conflicting and non-conflicting stimuli, between the two modalities, were obtained. The resulting stimuli were presented as a perceptual test to eight 4 and 5-year-old French Canadian speakers and ten adults in three conditions: visual-only, auditory-only, and audiovisual. Results show that, even though the visual cues have a significant effect on the identification of the stimuli for adults and children, children are less sensitive to visual cues in the audiovisual condition. Such results shed light on the role of multimodal perception in the emergence and the refinement of the phonological system in children.
Syllable cut is said to be a phonologically distinctive feature in some languages where the difference in vowel quantity is accompanied by a difference in vowel quality like in German. There have been several attempts to find the corresponding phonetic correlates for syllable cut, from which the energy measurements of vowels by Spiekermann (2000) proved appropriate for explaining the difference between long, i.e. smoothly, and short, i.e. abruptly cut, vowels: in smoothly cut vowels, a larger number of peaks was counted in the energy contour which were located further back than in abruptly cut segments, and the overall energy was more constant throughout the entire nucleus. On this basis, we intended to compare German as a syllable cut language and Hungarian where the feature was not expected to be relevant. However, the phonetic correlates of syllable cut found in this study do not entirely confirm Spiekermann's results. It seems that the energy features of vowels are more strongly connected to their duration than to their quality.
This study reports on the results of an airflow experiment that measured the duration of airflow and the amount of air from release of a stop to the beginning of a following vowel in stop vowel-sequences of German. The sequences involved coronal, labial and velar voiced and voiceless stops followed by the vocoids /j, i:, ı, ɛ, ʊ, a/. The experiment tested the influence of the three factors voicing of stop, place of stop articulation, and the following vocoid context on the duration and amount of air as possible explanation for assibilation processes. The results show that the voiceless stops are related to a longer duration and more air in the release phase than voiced ones. For the influence of the vocoids, a significant difference could be established between /j/ and all other vocoids for the duration of the release phase. This difference could not be found for the amount of air over this duration. The place of articulation had only restricted influence. Velars resulted in significantly longer duration of the release phase compared to non-velars. A significant difference in amount of air between the places of articulation could not be found.
The present article is a follow-up study of the investigation of labiodentals in German and Dutch by Hamann & Sennema (2005), where we looked at the perception of the Dutch labiodental three-way contrast by German listeners without any knowledge of Dutch and German learners of Dutch. The results of this previous study suggested that the German voiced labiodental fricative /v/ is perceptually closer to the Dutch approximant /ʋ/ than to the corresponding Dutch voiced labiodental fricative /v/. These perceptual indications are attested by the acoustic findings in the present study. German /v/ has a similar harmonicity median and a similar centre of gravity to Dutch /ʋ/, but differs from Dutch /v/ in these parameters. With respect to the acoustic parameter of duration, German /v/ lies closer to the Dutch /v/ than to the Dutch /ʋ/.
(Non)retroflexivity of slavic affricates and its motivation : Evidence from polish and czech <č>
(2005)
The goal of this paper is two-fold. First, it revises the common assumption that the affricate <č> denotes /t͡ʃ/ for all Slavic languages. On the basis of experimental results it is shown that Slavic <č> stands for two sounds: /t͡ʃ/ as e.g. in Czech and /ʈʂ/ as in Polish.
The second goal of the paper is to show that this difference is not accidental but it is motivated by perceptual relations among sibilants. In Polish, /t͡ʃ/ changed to /ʈʂ/ thus lowering its sibilant tonality and creating a better perceptual distance to /tɕ/, whereas in Czech /t͡ʃ/ did not turn to /ʈʂ/, as the former displayed sufficient perceptual distance to the only affricate present in the inventory, namely, the alveolar /t͡s/. Finally, an analysis of Czech and Polish affricate inventories is offered.
While the perilinguistic child is endowed with predispositions for the categorical perception of phonetic features, their adaptation to the native language results from a long evolution from the end of the first year of age up to the adolescence. This evolution entails both a better discrimination between phonological categories, a concomitant reduction of the discrimination between within-category variants, and a higher precision of perceptual boundaries between categories. The first objective of the present study was to assess the relative importance of these modifications by comparing the perceptual performances of a group of 11 children, aged from 8 to 11 years, with those of their mothers. Our second objective was to explore the functional implications of categorical perception by comparing the performances of a group of 8 deaf children, equipped with a cochlear implant, with normal-hearing chronological age controls. The results showed that the categorical boundary was slightly more precise and that categorical perception was consistently larger in adults vs. normal-hearing children. Those among the deaf children who were able to discriminate minimal distinctions between syllables displayed categorical perception performances equivalent to those of normal-hearing controls. In conclusion, the late effect of age on the categorical perception of speech seems to be anchored in a fairly mature phonological system, as evidenced the fairly high precision of categorical boundaries in pre-adolescents. These late developments have functional implications for speech perception in difficult conditions as suggested by the relationship between categorical perception and speech intelligibility in cochlear implant children.
Four speakers repeated 8 times 15 sentences containing 'pVp' syllables (V being /a/, /i/ and /u/). The 'pVp' syllables were located in final, penultimate and antepenultimate position relatively to the Intonational Phrase (IP) boundary. They were embedded in lexical words of 1-3 syllables and were either word-initial or word-final. Results show that the closer the vowel in word-final position is to the IP boundary, the longer the duration and the higher the fundamental frequency of the vowel; it is also characterised by larger lip opening gestures. The potential reduction or coarticulation of vowels in wordinitial position compared to their counterparts in word-final position is discussed.
Articulatory token-to-token variability not only depends on linguistic aspects like the phoneme inventory of a given language but also on speaker specific morphological and motor constraints. As has been noted previously (Perkell (1997), Mooshammer et al. (2004)), speakers with coronally high "domeshaped" palates exhibit more articulatory variability than speakers with coronally low "flat" palates. One explanation for that is based on perception oriented control by the speaker. The influence of articulatory variation on the cross sectional area and consequently on the acoustics should be greater for flat palates than for domeshaped ones. This should force speakers with flat palates to place their tongue very precisely whereas speakers with domeshaped palates might tolerate a greater variability. A second explanation could be a greater amount of lateral linguo-palatal contact for flat palates holding the tongue in position. In this study both hypotheses were tested.
In order to investigate the influence of the palate shape on the variability of the acoustic output a modelling study was carried out. Parallely, an EPG experiment was conducted in order to investigate the relationship between palate shape, articulatory variability and linguo-palatal contact.
Results from the modelling study suggest that the acoustic variability resulting from a certain amount of articulatory variability is higher for flat palates than for domeshaped ones. Results from the EPG experiment with 20 speakers show that (1.) speakers with a flat palate exhibit a very low articulatory variability whereas speakers with a domeshaped palate vary, (2.) there is less articulatory variability if there is lots of linguo-palatal contact and (3.) there is no relationship between the amount of lateral linguo-palatal contact and palate shape. The results suggest that there is a relationship between token-to-token variability and palate shape, however, it is not that the two parameters correlate, but that speakers with a flat palate always have a low variability because of constraints of the variability range of the acoustic output whereas speakers with a domeshaped palate may choose the degree of variability. Since linguo-palatal contact and variability correlate it is assumed that linguo-palatal contact is a means for reducing the articulatory variability.