@article{AbakarovaIskarousNoiray2018, author = {Abakarova, Dzhuma and Iskarous, Khalil and Noiray, Aude}, title = {Quantifying lingual coarticulation in German using mutual information}, series = {The journal of the Acoustical Society of America}, volume = {144}, journal = {The journal of the Acoustical Society of America}, number = {2}, publisher = {American Institute of Physics}, address = {Melville}, issn = {0001-4966}, doi = {10.1121/1.5047669}, pages = {897 -- 907}, year = {2018}, abstract = {In previous research, mutual information (MI) was employed to quantify the physical information shared between consecutive phonological segments, based on electromagnetic articulography data. In this study, MI is extended to quantifying coarticulatory resistance (CR) versus overlap in German using ultrasound imaging. Two measurements are tested as input to MI: (1) the highest point on the tongue body and (2) the first coefficient of the discrete Fourier transform (DFT) of the whole tongue contour. Both measures are used to examine changes in coarticulation between two time points during the syllable span: the consonant midpoint and the vowel onset. Results corroborate previous findings reporting differences in coarticulatory overlap in German and across languages. Further, results suggest that MI used with the highest point on the tongue body captures distinctions related both to place and manner of articulation, while the first DFT coefficient does not provide any additional information regarding global (whole tongue) as opposed to local (individual articulator) aspects of CR. However, both methods capture temporal distinctions in coarticulatory resistance between the two time points. Results are discussed with respect to the potential of MI measure to provide a way of unifying coarticulation quantification methods across data collection techniques.}, language = {en} } @article{Abusch2007, author = {Abusch, Dorit}, title = {Focus presuppositions}, url = {http://nbn-resolving.de/urn:nbn:de:kobv:517-opus-19663}, year = {2007}, abstract = {This paper reviews notions related to focus and presupposition and addresses the hypothesis that focus triggers an existential presupposition. Presupposition projection behavior in certain examples appears to favor a presuppositional analysis of focus. It is argued that these examples are open to a different analysis using givenness theory. Overall, the analysis favors a weak semantics for focus not including an existential presupposition.}, language = {en} } @article{AdaniForgiariniGuastietal.2014, author = {Adani, Flavia and Forgiarini, Matteo and Guasti, Maria Teresa and Van der Lely, Heather K. J.}, title = {Number dissimilarities facilitate the comprehension of relative clauses in children with (Grammatical) Specific Language Impairment}, series = {Journal of child language}, volume = {41}, journal = {Journal of child language}, number = {4}, publisher = {Cambridge Univ. Press}, address = {New York}, issn = {0305-0009}, doi = {10.1017/S0305000913000184}, pages = {811 -- 841}, year = {2014}, abstract = {This study investigates whether number dissimilarities on subject and object DPs facilitate the comprehension of subject-and object-extracted centre-embedded relative clauses in children with Grammatical Specific Language Impairment (G-SLI). We compared the performance of a group of English-speaking children with G-SLI (mean age: 12; 11) with that of two groups of younger typically developing (TD) children, matched on grammar and receptive vocabulary, respectively. All groups were more accurate on subject-extracted relative clauses than object-extracted ones and, crucially, they all showed greater accuracy for sentences with dissimilar number features (i.e., one singular, one plural) on the head noun and the embedded DP. These findings are interpreted in the light of current psycholinguistic models of sentence comprehension in TD children and provide further insight into the linguistic nature of G-SLI.}, language = {en} } @article{AdaniStegenwallnerSchutzNiesel2017, author = {Adani, Flavia and Stegenwallner-Schutz, Maja Henny Katherine and Niesel, Talea}, title = {The Peaceful Co-existence of Input Frequency and Structural Intervention Effects on the Comprehension of Complex Sentences in German-Speaking Children}, series = {Frontiers in psychology}, volume = {8}, journal = {Frontiers in psychology}, publisher = {Frontiers Research Foundation}, address = {Lausanne}, issn = {1664-1078}, doi = {10.3389/fpsyg.2017.01590}, pages = {11}, year = {2017}, abstract = {The predictions of two contrasting approaches to the acquisition of transitive relative clauses were tested within the same groups of German-speaking participants aged from 3 to 5 years old. The input frequency approach predicts that object relative clauses with inanimate heads (e.g., the pullover that the man is scratching) are comprehended earlier and more accurately than those with an animate head (e.g., the man that the boy is scratching). In contrast, the structural intervention approach predicts that object relative clauses with two full NP arguments mismatching in number (e.g., the man that the boys are scratching) are comprehended earlier and more accurately than those with number-matching NPs (e.g., the man that the boy is scratching). These approaches were tested in two steps. First, we ran a corpus analysis to ensure that object relative clauses with number-mismatching NPs are not more frequent than object relative clauses with number-matching NPs in child directed speech. Next, the comprehension of these structures was tested experimentally in 3-, 4-, and 5-year-olds respectively by means of a color naming task. By comparing the predictions of the two approaches within the same participant groups, we were able to uncover that the effects predicted by the input frequency and by the structural intervention approaches co-exist and that they both influence the performance of children on transitive relative clauses, but in a manner that is modulated by age. These results reveal a sensitivity to animacy mismatch already being demonstrated by 3-year-olds and show that animacy is initially deployed more reliably than number to interpret relative clauses correctly. In all age groups, the animacy mismatch appears to explain the performance of children, thus, showing that the comprehension of frequent object relative clauses is enhanced compared to the other conditions. Starting with 4-year-olds but especially in 5-year-olds, the number mismatch supported comprehension-a facilitation that is unlikely to be driven by input frequency. Once children fine-tune their sensitivity to verb agreement information around the age of four, they are also able to deploy number marking to overcome the intervention effects. This study highlights the importance of testing experimentally contrasting theoretical approaches in order to characterize the multifaceted, developmental nature of language acquisition.}, language = {en} } @article{AdanivanderLelyForgiarinietal.2010, author = {Adani, Flavia and van der Lely, Heather K. J. and Forgiarini, Matteo and Guasti, Maria Teresa}, title = {Grammatical feature dissimilarities make relative clauses easier : a comprehension study with Italian children}, issn = {0024-3841}, doi = {10.1016/j.lingua.2010.03.018}, year = {2010}, abstract = {The Relativized Minimality approach to A'-dependencies (Friedmann et al., 2009) predicts that headed object relative clauses (RCs) and which questions are the most difficult, due to the presence of a lexical restriction on both the subject and the object DP which creates intervention. We investigated comprehension of center-embedded headed object RCs with Italian children, where Number and Gender feature values on subject and object DPs are manipulated. We found that. Number conditions are always more accurate than Gender ones, showing that intervention is sensitive to DP-internal structure. We propose a finer definition of the lexical restriction where external and syntactically active features (such as Number) reduce intervention whereas internal and (possibly) lexicalized features (such as Gender) do so to a lesser extent. Our results are also compatible with a memory interference approach in which the human parser is sensitive to highly specific properties of the linguistic input, such as the cue-based model (Van Dyke, 2007).}, language = {en} } @article{AlbertNicenboim2022, author = {Albert, Aviad and Nicenboim, Bruno}, title = {Modeling sonority in terms of pitch intelligibility with the nucleus attraction principle}, series = {Cognitive science : a multidisciplinary journal of anthropology, artificial intelligence, education, linguistics, neuroscience, philosophy, psychology ; journal of the Cognitive Science Society}, volume = {46}, journal = {Cognitive science : a multidisciplinary journal of anthropology, artificial intelligence, education, linguistics, neuroscience, philosophy, psychology ; journal of the Cognitive Science Society}, number = {7}, publisher = {Wiley}, address = {Hoboken}, issn = {0364-0213}, doi = {10.1111/cogs.13161}, pages = {68}, year = {2022}, abstract = {Sonority is a fundamental notion in phonetics and phonology, central to many descriptions of the syllable and various useful predictions in phonotactics. Although widely accepted, sonority lacks a clear basis in speech articulation or perception, given that traditional formal principles in linguistic theory are often exclusively based on discrete units in symbolic representation and are typically not designed to be compatible with auditory perception, sensorimotor control, or general cognitive capacities. In addition, traditional sonority principles also exhibit systematic gaps in empirical coverage. Against this backdrop, we propose the incorporation of symbol-based and signal-based models to adequately account for sonority in a complementary manner. We claim that sonority is primarily a perceptual phenomenon related to pitch, driving the optimization of syllables as pitch-bearing units in all language systems. We suggest a measurable acoustic correlate for sonority in terms of periodic energy, and we provide a novel principle that can account for syllabic well-formedness, the nucleus attraction principle (NAP). We present perception experiments that test our two NAP-based models against four traditional sonority models, and we use a Bayesian data analysis approach to test and compare them. Our symbolic NAP model outperforms all the other models we test, while our continuous bottom-up NAP model is at second place, along with the best performing traditional models. We interpret the results as providing strong support for our proposals: (i) the designation of periodic energy as the acoustic correlate of sonority; (ii) the incorporation of continuous entities in phonological models of perception; and (iii) the dual-model strategy that separately analyzes symbol-based top-down processes and signal-based bottom-up processes in speech perception.}, language = {en} } @article{Aldrup2019, author = {Aldrup, Marit}, title = {Well let me put it uhm the other way around maybe'}, series = {Classroom discourse}, volume = {10}, journal = {Classroom discourse}, number = {1}, publisher = {Routledge, Taylor \& Francis Group}, address = {Abingdon}, issn = {1946-3014}, doi = {10.1080/19463014.2019.1567360}, pages = {46 -- 70}, year = {2019}, abstract = {This study is concerned with repair practices that a teacher and students employ to restore intersubjectivity when faced with interactional problems in a Content and Language Integrated Learning (CLIL) classroom. Adopting a conversation analytic (CA) approach, it examines the interactional treatment of students' verbal and embodied trouble displays in a video-recorded, teacher-fronted geography lesson held in English at a German high school. At the same time, it explores to what extent the repair practices employed are fitted to this specific interactional context. The analysis shows that students' verbal trouble displays often result in extensive repair sequences, whereas students' embodied trouble displays are usually met with teacher self-repair in the transition space. In this way, the latter are resolved much earlier and more quickly. The study further reveals practices like reformulation and translation to be especially useful for repairing interactional problems in classrooms in which a foreign language is used as the medium of instruction. The findings may be of interest for prospective as well as practicing teachers in that they provide relevant insights into how interactional trouble can be successfully managed in (CLIL) classroom interaction.}, language = {en} } @article{Alexiadou2019, author = {Alexiadou, Artemis}, title = {A form-function mismatch?}, series = {Of trees and birds. A Festschrift for Gisbert Fanselow}, journal = {Of trees and birds. A Festschrift for Gisbert Fanselow}, publisher = {Universit{\"a}tsverlag Potsdam}, address = {Potsdam}, isbn = {978-3-86956-457-9}, doi = {10.25932/publishup-43223}, url = {http://nbn-resolving.de/urn:nbn:de:kobv:517-opus4-432235}, pages = {107 -- 117}, year = {2019}, language = {en} } @article{AllefeldFrischSchlesewsky2005, author = {Allefeld, Carsten and Frisch, Stefan and Schlesewsky, Matthias}, title = {Detection of early cognitive processing by event-related phase synchronization analysis}, issn = {0959-4965}, year = {2005}, abstract = {In order to investigate the temporal characteristics of cognitive processing, we apply multivariate phase synchronization analysis to event-related potentials. The experimental design combines a semantic incongruity in a sentence context with a physical mismatch (color change). In the ERP average, these result in an N400 component and a P300-like positivity, respectively. Synchronization analysis shows an effect of global desynchronization in the theta band around 288 ms after stimulus presentation for the semantic incongruity, while the physical mismatch elicits an increase of global synchronization in the alpha band around 204 ms. Both of these effects clearly precede those in the ERP aver-age. Moreover, the delay between synchronization effect and ERP component correlates with the complexity Of the cognitive processes. (C) 2005 Lippincott Williams Wilkins}, language = {en} } @article{AlxatibSauerland2019, author = {Alxatib, Sam and Sauerland, Ulrich}, title = {Vagueness}, series = {The Oxford Handbook of Experimental Semantics and Pragmatics}, journal = {The Oxford Handbook of Experimental Semantics and Pragmatics}, publisher = {Oxford University Press}, address = {Oxford}, doi = {10.1093/oxfordhb/9780198791768.013.24}, pages = {28}, year = {2019}, abstract = {Though vague phenomena have been studied extensively for many decades, it is only in recent years that researchers sought the support of quantitative data. This chapter highlights and discusses the insights that experimental methods brought to the study of vagueness. One area focused on are 'borderline contradictions', that is, sentences like 'She is neither tall nor not tall' that are contradictory when analysed in classical logic, but are actually acceptable as descriptions of borderline cases. The flourishing of theories and experimental studies that borderline contradictions have led to are examined closely. Beyond this illustrative case, an overview of recent studies that concern the classification of types of vagueness, the use of numbers, rounding, number modification, and the general pragmatic status of vagueness is provided.}, language = {en} } @article{AmaechiGeorgi2019, author = {Amaechi, Mary Chimaobi and Georgi, Doreen}, title = {Quirks of subject (non-)extraction in Igbo}, series = {Glossa : a journal of general linguistics}, volume = {4}, journal = {Glossa : a journal of general linguistics}, number = {1}, publisher = {Ubiquity Press}, address = {London}, issn = {2397-1835}, doi = {10.5334/gjgl.607}, pages = {36}, year = {2019}, abstract = {In this paper we present new data on a subject/non-subject extraction asymmetry in Igbo constituent questions. We provide evidence that the superficially morphological phenomenon reflects a deeper syntactic asymmetry: Unlike wh-non-subjects, wh-subjects cannot undergo local (A) over bar -movement to the left periphery (SpecFoc); rather, they have to stay in their canonical position SpecT. The same constraint also leads to the that-trace effect (absence of the complementizer) in the embedded clause of long subject wh-movement. We argue that what is responsible for the special status of wh-subjects is their high structural position. We provide an optimality-theoretic analysis of the asymmetry that is based on anti-locality: Local subject (A) over bar -movement is excluded because it is too short. Moreover, we address the nature of apparent wh-in-situ in Igbo.}, language = {en} } @article{AmaechiGeorgi2020, author = {Amaechi, Mary Chimaobi and Georgi, Doreen}, title = {On optional wh-/focus fronting in Igbo}, series = {Zeitschrift f{\"u}r Sprachwissenschaft}, volume = {39}, journal = {Zeitschrift f{\"u}r Sprachwissenschaft}, number = {3}, publisher = {De Gruyter}, address = {Berlin}, issn = {0721-9067}, doi = {10.1515/zfs-2020-2017}, pages = {299 -- 327}, year = {2020}, abstract = {This paper discusses surface optionality in focus fronting in the Benue-Congo language Igbo. A focused XP can occur in-situ or ex-situ. We argue that the optionality does not have its origins in the syntax: in fact, exactly one focused XP has to move to the designated focus position in the left periphery in the syntax. The alternation between in-situ and ex-situ rather arises at PF: either the lowest or the topmost copy of the focus chain is pronounced. The choice is determined by semantic-pragmatic factors, i. e., we see an interaction between PF and LF. This constitutes a challenge for a strict version of the Y-model of grammar.}, language = {en} } @article{ArantzetaBastiaanseBurchertetal.2017, author = {Arantzeta, Miren and Bastiaanse, Roelien and Burchert, Frank and Wieling, Martijn Benjamin and Martinez-Zabaleta, Maite and Laka, Itziar}, title = {Eye-tracking the effect of word order in sentence comprehension in aphasia}, series = {Language, cognition and neuroscience}, volume = {32}, journal = {Language, cognition and neuroscience}, number = {10}, publisher = {Routledge, Taylor \& Francis Group}, address = {Abingdon}, issn = {2327-3798}, doi = {10.1080/23273798.2017.1344715}, pages = {1320 -- 1343}, year = {2017}, abstract = {Agrammatic speakers of languages with overt grammatical case show impaired use of the morphological cues to establish theta-role relations in sentences presented in non-canonical word orders. We analysed the effect of word order on the sentence comprehension of aphasic speakers of Basque, an ergative, free word order and head-final (SOV) language. Ergative languages such as Basque establish a one-to-one mapping of the thematic role and the case marker. We collected behavioural and gaze-fixation data while agrammatic speakers performed a picture-matching task with auditorily presented sentences with different word orders. We found that people with aphasia (PWA) had difficulties in assigning theta-roles in Theme-Agent order. This result is in line with processing accounts. Contrary to previous findings, our data do not suggest a systematic delay in the integration of morphological information in the PWA group, but strong reliance on the ergative case morphology and difficulties assigning thematic roles into the determiner phrases.}, language = {en} } @article{ArantzetaWebsterLakaetal.2018, author = {Arantzeta, Miren and Webster, Janet and Laka, Itziar and Martinez-Zabaleta, Maite and Howard, David}, title = {What happens when they think they are right?}, series = {Aphasiology : an international, interdisciplinary journal}, volume = {32}, journal = {Aphasiology : an international, interdisciplinary journal}, number = {12}, publisher = {Routledge, Taylor \& Francis Group}, address = {Abingdon}, issn = {0268-7038}, doi = {10.1080/02687038.2017.1423270}, pages = {1418 -- 1444}, year = {2018}, abstract = {Background: Comprehension of non-canonical sentences is frequently characterised by chance level performance in people with aphasia (PWA). Chance level performance has been interpreted as guessing, but online data does not support this rendering. It is still not clear whether the incorrect sentence processing is guided by the compensatory strategies that PWA might employ to overcome linguistic difficulties.Aims: We aim to study to what extent people with non-fluent aphasia are aware of their sentence comprehension deficits.Methods \& Procedures: This study combined offline and online data to investigate the effect of word order and error-awareness on sentence comprehension in a group of PWA and non-brain damaged (NBD) participants. The offline tasks involved auditory sentence picture-matching immediately followed by a confidence rating (CR). Participants were asked to judge the perceived correctness of their previous answer. Online data consisted of eye-tracking.Outcomes \& Results: Replicating previous findings, PWA had significantly worse comprehension of Theme-Agent order compared to Agent-Theme order sentences. Controls showed ceiling level sentence comprehension. CR was a poor predictor of response accuracy in PWA, but moderate-good in NBD. A total of 6.8\% of judgements were classified as guessing by PWA. Post hoc gaze data analysis indicated that CR was a predictor of the fixation pattern during the presentation of the linguistic stimuli.Conclusions: Results suggest that PWA were mostly unaware of their sentence comprehension errors and did not consciously employ strategies to compensate for their difficulties.}, language = {en} } @article{ArnoldBallierLissonetal.2019, author = {Arnold, Taylor and Ballier, Nicolas and Lisson, Paula and Tilton, Lauren}, title = {Beyond lexical frequencies: using R for text analysis in the digital humanities}, series = {Language resources and evaluation}, volume = {53}, journal = {Language resources and evaluation}, number = {4}, publisher = {Springer}, address = {Dordrecht}, issn = {1574-020X}, doi = {10.1007/s10579-019-09456-6}, pages = {707 -- 733}, year = {2019}, abstract = {This paper presents a combination of R packages-user contributed toolkits written in a common core programming language-to facilitate the humanistic investigation of digitised, text-based corpora.Our survey of text analysis packages includes those of our own creation (cleanNLP and fasttextM) as well as packages built by other research groups (stringi, readtext, hyphenatr, quanteda, and hunspell). By operating on generic object types, these packages unite research innovations in corpus linguistics, natural language processing, machine learning, statistics, and digital humanities. We begin by extrapolating on the theoretical benefits of R as an elaborate gluing language for bringing together several areas of expertise and compare it to linguistic concordancers and other tool-based approaches to text analysis in the digital humanities. We then showcase the practical benefits of an ecosystem by illustrating how R packages have been integrated into a digital humanities project. Throughout, the focus is on moving beyond the bag-of-words, lexical frequency model by incorporating linguistically-driven analyses in research.}, language = {en} } @article{ArsenijevicMitic2016, author = {Arsenijevic, Boban and Mitic, Ivana}, title = {On the Number-Gender (In)dependence in Agreement with Coordinated Subjects}, series = {Journal of Slavic linguistics : journal of the Slavic Linguistics Society}, volume = {24}, journal = {Journal of Slavic linguistics : journal of the Slavic Linguistics Society}, publisher = {Slavica Publishers}, address = {Bloomington}, issn = {1068-2090}, doi = {10.1353/jsl.2016.0006}, pages = {41 -- 69}, year = {2016}, abstract = {This paper examines the availability of single-conjunct agreement in number and gender in Bosnian/Croatian/Serbian. Reported are the results of an experiment in which coordinated singulars are included, as well as disjunction and negative-concord conjunction, next to the typically examined conjoined plurals. The research shows that, contra the general assumptions in the literature (Marusic, Nevins, and Saksida 2007, Marusic, Nevins, and Badecker 2015, Boskovic 2009) but in line with earlier research (Moskovljevic 1983, Bojovic 2003), single-conjunct agreement does occur with coordinated singulars, especially in gender, even if less frequently. This paper shows that (i) first-conjunct agreement in gender preverbally and even last-conjunct agreement postverbally are produced above error level, and that the availability of collective interpretations for the coordinated subject influences the acceptability of the different agreement patterns available, and (ii) number and gender agreement do not have to target the same constituent. The findings shed light on the relation between the features of number and gender with regard to the issues of their bundling and simultaneous agreement, where the experimental results suggest that, while number tends to agree in a pattern that fits either semantic agreement or agreement with the entire conjunction, gender prefers to target single members of coordination, the first or the last. We speculate that a degree of "attraction" obtains, whereby number may attract gender to agree with the entire conjunction or gender may attract number to agree with a single conjunct. The results are used to compare two analyses offered in the literature-Marusic, Nevins, and Saksida 2007/Marusic, Nevins, and Badecker 2015 and Boskovic 2009-showing that our empirical findings are problematic for both, but give a certain advantage to Marusic and his co-authors.}, language = {en} } @article{ArslanDeKokBastiaanse2017, author = {Arslan, Seckin and De Kok, D{\"o}rte and Bastiaanse, Roelien}, title = {Processing grammatical evidentiality and time reference in Turkish heritage and monolingual speakers}, series = {Bilingualism : language and cognition.}, volume = {20}, journal = {Bilingualism : language and cognition.}, publisher = {Cambridge Univ. Press}, address = {New York}, issn = {1366-7289}, doi = {10.1017/S136672891500084X}, pages = {457 -- 472}, year = {2017}, language = {en} } @article{ArslanAksuKocMavisetal.2014, author = {Arslan, Se{\c{c}}kin and Aksu-Koc, Ayhan and Mavis, Ilknur and Bastiaanse, Roelien}, title = {Finite verb inflections for evidential categories and source}, series = {Journal of pragmatics : an interdisciplinary journal of language studies}, volume = {70}, journal = {Journal of pragmatics : an interdisciplinary journal of language studies}, publisher = {Elsevier}, address = {Amsterdam}, issn = {0378-2166}, doi = {10.1016/j.pragma.2014.07.002}, pages = {165 -- 181}, year = {2014}, language = {en} } @article{ArslanBamyaciBastiaanse2016, author = {Arslan, Se{\c{c}}kin and Bamyaci, Elif and Bastiaanse, Roelien}, title = {A characterization of verb use in Turkish agrammatic narrative speech}, series = {Philosophische Rundschau}, volume = {30}, journal = {Philosophische Rundschau}, publisher = {J. C. B. Mohr}, address = {Philadelphia}, issn = {0269-9206}, doi = {10.3109/02699206.2016.1144224}, pages = {449 -- 469}, year = {2016}, abstract = {This study investigates the characteristics of narrative-speech production and the use of verbs in Turkish agrammatic speakers (n = 10) compared to non-brain-damaged controls (n = 10). To elicit narrative-speech samples, personal interviews and storytelling tasks were conducted. Turkish has a large and regular verb inflection paradigm where verbs are inflected for evidentiality (i.e. direct versus indirect evidence available to the speaker). Particularly, we explored the general characteristics of the speech samples (e.g. utterance length) and the uses of lexical, finite and non-finite verbs and direct and indirect evidentials. The results show that speech rate is slow, verbs per utterance are lower than normal and the verb diversity is reduced in the agrammatic speakers. Verb inflection is relatively intact; however, a trade-off pattern between inflection for direct evidentials and verb diversity is found. The implications of the data are discussed in connection with narrative-speech production studies on other languages.}, language = {en} } @article{ArslanBastiaanseFelser2015, author = {Arslan, Se{\c{c}}kin and Bastiaanse, Roelien and Felser, Claudia}, title = {Looking at the evidence in visual world: eye-movements reveal how bilingual and monolingual Turkish speakers process grammatical evidentiality}, series = {Frontiers in psychology}, volume = {6}, journal = {Frontiers in psychology}, publisher = {Frontiers Research Foundation}, address = {Lausanne}, issn = {1664-1078}, doi = {10.3389/fpsyg.2015.01387}, pages = {13}, year = {2015}, abstract = {This study presents pioneering data on how adult early bilinguals (heritage speakers) and late bilingual speakers of Turkish and German process grammatical evidentiality in a visual world setting in comparison to monolingual speakers of Turkish. Turkish marks evidentiality, the linguistic reference to information source, through inflectional affixes signaling either direct (-DI) or indirect (-mls) evidentiality. We conducted an eyetracking-during-listening experiment where participants were given access to visual 'evidence' supporting the use of either a direct or indirect evidential form. The behavioral results indicate that the monolingual Turkish speakers comprehended direct and indirect evidential scenarios equally well. In contrast, both late and early bilinguals were less accurate and slower to respond to direct than to indirect evidentials. The behavioral results were also reflected in the proportions of looks data. That is, both late and early bilinguals fixated less frequently on the target picture in the direct than in the indirect evidential condition while the monolinguals showed no difference between these conditions. Taken together, our results indicate reduced sensitivity to the semantic and pragmatic function of direct evidential forms in both late and early bilingual speakers, suggesting a simplification of the Turkish evidentiality system in Turkish heritage grammars. We discuss our findings with regard to theories of incomplete acquisition and first language attrition.}, language = {en} }