Individual differences in categorical perception of speech: Cue weighting and executive function

Journal of Phonetics
Eun Jong Kong, Jan Edwards

Abstract

This study examined individual differences in categorical perception and the use of multiple acoustic cues in the perception of the stop voicing contrast. Goals were to investigate whether gradiency of speech perception was related to listeners' differential sensitivity to acoustic cues and to individual differences in executive function. The experiment included two speech perception tasks (visual analogue scaling [VAS] and anticipatory eye movement [AEM]) administered to 30 English-speaking adults in two separate experimental sessions. Stimuli were a /ta/ to /da/ continuum that systematically varied VOT and f0. Findings were that some listeners had a more gradient pattern of responses on the VAS task; the listeners who had a gradient response pattern on the VAS task also showed more sensitivity to f0 on the AEM task. The patterns were consistent across individuals tested on two separate occasions. These results suggest that variability in how categorically listeners perceive speech sounds is consistent and systematic within individuals.

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Citations

Jan 8, 2020·Attention, Perception & Psychophysics·Kaori Idemaru, Lori L Holt
Jun 27, 2019·Cerebral Cortex·Deborah F Levy, Stephen M Wilson
Mar 18, 2020·Frontiers in Neuroscience·Gavin M BidelmanAlex M Boudreaux
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Nov 15, 2018·The Journal of the Acoustical Society of America·Meghan Clayards
Oct 15, 2019·Wiley Interdisciplinary Reviews. Cognitive Science·Jessamyn Schertz, Emily J Clare
Feb 2, 2021·Brain and Language·Pamela Fuhrmeister, Emily B Myers

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