@article{WilliamsEscuderoGafos2018, author = {Williams, Daniel Philip and Escudero, Paola and Gafos, Adamantios I.}, title = {Spectral change and duration as cues in Australian English listeners' front vowel categorization}, series = {The journal of the Acoustical Society of America}, volume = {144}, journal = {The journal of the Acoustical Society of America}, number = {3}, publisher = {American Institute of Physics}, address = {Melville}, issn = {0001-4966}, doi = {10.1121/1.5055019}, pages = {EL215 -- EL221}, year = {2018}, abstract = {Australian English /iː/, /ɪ/, and /ɪə/ exhibit almost identical average first (F1) and second (F2) formant frequencies and differ in duration and vowel inherent spectral change (VISC). The cues of duration, F1 × F2 trajectory direction (TD) and trajectory length (TL) were assessed in listeners' categorization of /iː/ and /ɪə/ compared to /ɪ/. Duration was important for distinguishing both /iː/ and /ɪə/ from /ɪ/. TD and TL were important for categorizing /iː/ versus /ɪ/, whereas only TL was important for /ɪə/ versus /ɪ/. Finally, listeners' use of duration and VISC was not mutually affected for either vowel compared to /ɪ/.}, language = {en} } @article{TobinHullebusGafos2018, author = {Tobin, Stephen and Hullebus, Marc Antony and Gafos, Adamantios I.}, title = {Immediate phonetic convergence in a cue-distractor paradigm}, series = {The journal of the Acoustical Society of America}, volume = {144}, journal = {The journal of the Acoustical Society of America}, number = {6}, publisher = {American Institute of Physics}, address = {Melville}, issn = {0001-4966}, doi = {10.1121/1.5082984}, pages = {EL528 -- EL534}, year = {2018}, abstract = {During a cue-distractor task, participants repeatedly produce syllables prompted by visual cues. Distractor syllables are presented to participants via headphones 150 ms after the visual cue (before any response). The task has been used to demonstrate perceptuomotor integration effects (perception effects on production): response times (RTs) speed up as the distractor shares more phonetic properties with the response. Here it is demonstrated that perceptuomotor integration is not limited to RTs. Voice Onset Times (VOTs) of the distractor syllables were systematically varied and their impact on responses was measured. Results demonstrate trial-specific convergence of response syllables to VOT values of distractor syllables.}, language = {en} } @article{TamasiMckeanGafosetal.2018, author = {Tamasi, Katalin and Mckean, Cristina and Gafos, Adamantios I. and H{\"o}hle, Barbara}, title = {Children's gradient sensitivity to phonological mismatch}, series = {Journal of child language}, volume = {46}, journal = {Journal of child language}, number = {1}, publisher = {Cambridge Univ. Press}, address = {New York}, issn = {0305-0009}, doi = {10.1017/S0305000918000259}, pages = {1 -- 23}, year = {2018}, abstract = {In a preferential looking paradigm, we studied how children's looking behavior and pupillary response were modulated by the degree of phonological mismatch between the correct label of a target referent and its manipulated form. We manipulated degree of mismatch by introducing one or more featural changes to the target label. Both looking behavior and pupillary response were sensitive to degree of mismatch, corroborating previous studies that found differential responses in one or the other measure. Using time-course analyses, we present for the first time results demonstrating full separability among conditions (detecting difference not only between one vs. more, but also between two and three featural changes). Furthermore, the correct labels and small featural changes were associated with stable target preference, while large featural changes were associated with oscillating looking behavior, suggesting significant shifts in looking preference over time. These findings further support and extend the notion that early words are represented in great detail, containing subphonemic information.}, language = {en} }