TY - BOOK A1 - Olsen, Susan A1 - Stiebels, Barbara A1 - Bierwisch, Manfred A1 - Zimmermann, Ilse A1 - Cavar, Damir A1 - Georgi, Doreen A1 - Bacskai-Atkari, Julia A1 - Alexiadou, Artemis A1 - Błaszczak, Joanna A1 - Müller, Gereon A1 - Šimík, Radek A1 - Meinunger, André A1 - Thiersch, Craig A1 - Arnhold, Anja A1 - Féry, Caroline A1 - Bayer, Josef A1 - Titov, Elena A1 - Fominyam, Henry A1 - Tran, Thuan A1 - Bornkessel-Schlesewsky, Ina D. A1 - Schlesewsky, Matthias A1 - Zimmermann, Malte A1 - Häussler, Jana A1 - Mucha, Anne A1 - Schmidt, Andreas A1 - Weskott, Thomas A1 - Wierzba, Marta A1 - Stede, Manfred A1 - Skopeteas, Stavros A1 - Gafos, Adamantios I. A1 - Haider, Hubert A1 - Wunderlich, Dieter A1 - Staudacher, Peter A1 - Rauh, Gisa ED - Brown, Jessica M. M. ED - Schmidt, Andreas ED - Wierzba, Marta T1 - Of Trees and Birds BT - A Festschrift for Gisbert Fanselow N2 - Gisbert Fanselow’s work has been invaluable and inspiring to many ­researchers working on syntax, morphology, and information ­structure, both from a ­theoretical and from an experimental perspective. This ­volume comprises a collection of articles dedicated to Gisbert on the occasion of his 60th birthday, covering a range of topics from these areas and beyond. The contributions have in ­common that in a broad sense they have to do with language structures (and thus trees), and that in a more specific sense they have to do with birds. They thus cover two of Gisbert’s major interests in- and outside of the linguistic world (and ­perhaps even at the interface). KW - Festschrift KW - Linguistik KW - Syntax KW - Morphologie KW - Informationsstruktur KW - festschrift KW - linguistics KW - syntax KW - morphology KW - information structure Y1 - 2019 U6 - http://nbn-resolving.de/urn/resolver.pl?urn:nbn:de:kobv:517-opus4-426542 SN - 978-3-86956-457-9 PB - Universitätsverlag Potsdam CY - Potsdam ER - TY - JOUR A1 - Shaw, Jason A. A1 - Gafos, Adamantios I. T1 - Stochastic Time Models of Syllable Structure JF - PLoS one N2 - Drawing on phonology research within the generative linguistics tradition, stochastic methods, and notions from complex systems, we develop a modelling paradigm linking phonological structure, expressed in terms of syllables, to speech movement data acquired with 3D electromagnetic articulography and X-ray microbeam methods. The essential variable in the models is syllable structure. When mapped to discrete coordination topologies, syllabic organization imposes systematic patterns of variability on the temporal dynamics of speech articulation. We simulated these dynamics under different syllabic parses and evaluated simulations against experimental data from Arabic and English, two languages claimed to parse similar strings of segments into different syllabic structures. Model simulations replicated several key experimental results, including the fallibility of past phonetic heuristics for syllable structure, and exposed the range of conditions under which such heuristics remain valid. More importantly, the modelling approach consistently diagnosed syllable structure proving resilient to multiple sources of variability in experimental data including measurement variability, speaker variability, and contextual variability. Prospects for extensions of our modelling paradigm to acoustic data are also discussed. Y1 - 2015 U6 - https://doi.org/10.1371/journal.pone.0124714 SN - 1932-6203 VL - 10 IS - 5 PB - PLoS CY - San Fransisco ER - TY - JOUR A1 - Gafos, Adamantios I. A1 - Charlow, Simon A1 - Shaw, Jason A. A1 - Hoole, Philip T1 - Stochastic time analysis of syllable-referential intervals and simplex onsets JF - Journal of phonetics N2 - We pursue an analysis of the relation between qualitative syllable parses and their quantitative phonetic consequences. To do this, we express the statistics of a symbolic organization corresponding to a syllable parse in terms of continuous phonetic parameters which quantify the timing of the consonants and vowels that make up syllables: consonantal plateau durations, vowel durations, and their variances. These parameters can be estimated from continuous phonetic data. This enables analysis of the link between symbolic phonological form and the continuous phonetics in which this form is manifest. Pursuing such an analysis, we illustrate the predictions of the syllabic organization corresponding to simplex onsets and derive a number of previously experimentally observed and simulation results. Specifically, we derive not only the canonical phonetic manifestations of simplex onsets but also the result that, under certain conditions we make precise, the phonetic indices of the simplex onset organization change to a range of values characteristic of the complex onset organization. Finally, we explore the behavior of phonetic indices for syllabic organization over progressively increasing,sizes of lexical samples, thereby concomitantly diversifying the phonetic context over which these indices are taken. Y1 - 2014 U6 - https://doi.org/10.1016/j.wocn.2013.11.007 SN - 0095-4470 VL - 44 SP - 152 EP - 166 PB - Elsevier CY - London ER - TY - JOUR A1 - Roon, Kevin D. A1 - Gafos, Adamantios I. T1 - Perceptuo-motor effects of response-distractor compatibility in speech: beyond phonemic identity JF - Psychonomic bulletin & review : a journal of the Psychonomic Society N2 - Previous studies have found faster response times in a production task when a speaker perceives a distractor syllable that is identical to the syllable they are required to produce. No study has found such effects when a response and a distractor are not identical but share parameters below the level of the phoneme. Results from Experiment 1 show some evidence of a response-time effect of response-distractor voicing congruency. Experiment 2 showed a robust effect of articulator congruency: perceiving a distractor that has the same articulatory organ as that implicated in the planned motor response speeds up response times. These results necessitate a more direct and specific formulation of the perception-production link than warranted by previous experimental evidence. Implications for theories of speech production are also discussed. KW - Speech perception KW - Speech production KW - Motor planning/programming KW - Psycholinguistics Y1 - 2015 U6 - https://doi.org/10.3758/s13423-014-0666-6 SN - 1069-9384 SN - 1531-5320 VL - 22 IS - 1 SP - 242 EP - 250 PB - Springer CY - New York ER - TY - GEN A1 - Williams, Daniel A1 - Escudero, Paola A1 - Gafos, Adamantios I. T1 - Perceptual sensitivity to spectral change in Australian English close front vowels BT - an electroencephalographic investigation T2 - 19 th annual conference of the international speech communicaton association (INTERSPEECH 2018), VOLS 1-6: Speech research for emerging marjets in multilingual societies N2 - Speech scientists have long noted that the qualities of naturally-produced vowels do not remain constant over their durations regardless of being nominally "monophthongs" or "diphthongs". Recent acoustic corpora show that there are consistent patterns of first (F1) and second (F2) formant frequency change across different vowel categories. The three Australian English (AusE) close front vowels /i:, 1, i/ provide a striking example: while their midpoint or mean F1 and F2 frequencies are virtually identical, their spectral change patterns distinctly differ. The results indicate that, despite the distinct patterns of spectral change of AusE /i:, i, la/ in production, its perceptual relevance is not uniform, but rather vowel-category dependent. KW - vowels KW - pre-attentive discrimination KW - speech perception KW - speech acoustics KW - English dialects Y1 - 2018 SN - 978-1-5108-7221-9 U6 - https://doi.org/10.21437/Interspeech.2018-2505 SN - 2308-457X SP - 1442 EP - 1446 PB - ISCA-International Speech Communication Association CY - Baixas ER - TY - GEN A1 - Hullebus, Marc Antony A1 - Tobin, Stephen J. A1 - Gafos, Adamantios I. T1 - Speaker-specific structure in German voiceless stop voice onset times T2 - 19th Annual confernce of the international speech communication association (INTERSPEECH 2018), VOLS 1-6: speech research for emerging markets in multilingual societies N2 - Voice onset time (VOT), a primary cue for voicing in many languages including English and German, is known to vary greatly between speakers, but also displays robust within-speaker consistencies, at least in English. The current analysis extends these findings to German. VOT measures were investigated from voiceless alveolar and velar stops in CV syllables cued by a visual prompt in a cue-distractor task. Comparably to English, a considerable portion of German VOT variability can be attributed to the syllable’s vowel length and the stop’s place of articulation. Individual differences in VOT still remain irrespective of speech rate. However, significant correlations across places of articulation and between speaker-specific mean VOTs and standard deviations indicate that talkers employ a relatively unified VOT profile across places of articulation. This could allow listeners to more efficiently adapt to speaker-specific realisations. KW - speech production KW - speech variability KW - voice onset time Y1 - 2018 SN - 978-1-5108-7221-9 U6 - https://doi.org/10.21437/Interspeech.2018-2288 SN - 2308-457X SP - 1403 EP - 1407 PB - ISCA-International Speech Communication Association CY - Baixas ER - TY - JOUR A1 - Höhle, Barbara A1 - Fritzsche, Tom A1 - Boll-Avetisyan, Natalie A1 - Hullebus, Marc A1 - Gafos, Adamantios I. T1 - Respect the surroundings BT - effects of phonetic context variability on infants' learning of minimal pairs JF - JASA Express Letters N2 - Fourteen-month-olds' ability to distinguish a just learned word, /bu?k/, from its minimally different word, /du?k/, was assessed under two pre-exposure conditions: one where /b, d/-initial forms occurred in a varying vowel context and another where the vowel was fixed but the final consonant varied. Infants in the experiments benefited from the variable vowel but not from the variable final consonant context, suggesting that vowel variability but not all kinds of variability are beneficial. These results are discussed in the context of time-honored observations on the vowel-dependent nature of place of articulation cues for consonants. Y1 - 2021 U6 - https://doi.org/10.1121/10.0003574 SN - 2691-1191 VL - 1 IS - 2 PB - AIP Publ. CY - Melville ER - TY - JOUR A1 - Höhle, Barbara A1 - Fritzsche, Tom A1 - Meß, Katharina A1 - Philipp, Mareike A1 - Gafos, Adamantios I. T1 - Only the right noise? BT - Effects of phonetic and visual input variability on 14-month-olds' minimal pair word learning JF - Developmental Science N2 - Seminal work by Werker and colleagues (Stager & Werker [1997]Nature, 388, 381-382) has found that 14-month-old infants do not show evidence for learning minimal pairs in the habituation-switch paradigm. However, when multiple speakers produce the minimal pair in acoustically variable ways, infants' performance improves in comparison to a single speaker condition (Rost & McMurray [2009]Developmental Science, 12, 339-349). The current study further extends these results and assesses how different kinds of input variability affect 14-month-olds' minimal pair learning in the habituation-switch paradigm testing German learning infants. The first two experiments investigated word learning when the labels were spoken by a single speaker versus when the labels were spoken by multiple speakers. In the third experiment we studied whether non-acoustic variability, implemented by visual variability of the objects presented together with the labels, would also affect minimal pair learning. We found enhanced learning in the multiple speakers compared to the single speaker condition, confirming previous findings with English-learning infants. In contrast, visual variability of the presented objects did not support learning. These findings both confirm and better delimit the beneficial role of speech-specific variability in minimal pair learning. Finally, we review different proposals on the mechanisms via which variability confers benefits to learning and outline what may be likely principles that underlie this benefit. We highlight among these the multiplicity of acoustic cues signalling phonemic contrasts and the presence of relations among these cues. It is in these relations where we trace part of the source for the apparent paradoxical benefit of variability in learning. KW - acoustic variability KW - habituation-switch paradigm KW - infant word learning KW - minimal pairs KW - phonological development KW - visual variability Y1 - 2020 U6 - https://doi.org/10.1111/desc.12950 SN - 1363-755X SN - 1467-7687 VL - 23 IS - 5 SP - 1 EP - 16 PB - Wiley-Blackwell CY - Oxford ER -