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Neural circuitry of the “rhythm effect” (Frankford et al., 2021) ...
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Somatosensory influence on visual vowel perception (Masapollo & Guenther, 2019) ...
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Somatosensory influence on visual vowel perception (Masapollo & Guenther, 2019) ...
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Abstract:
Purpose: This study aimed to test whether (and how) somatosensory feedback signals from the vocal tract affect concurrent unimodal visual speech perception. Method: Participants discriminated pairs of silent visual utterances of vowels under 3 experimental conditions: (a) normal (baseline) and while holding either (b) a bite block or (c) a lip tube in their mouths. To test the specificity of somatosensory–visual interactions during perception, we assessed discrimination of vowel contrasts optically distinguished based on their mandibular (English /ɛ/–/æ/) or labial (English /u/–French /u/) postures. In addition, we assessed perception of each contrast using dynamically articulating videos and static (single-frame) images of each gesture (at vowel midpoint). Results: Engaging the jaw selectively facilitated perception of the dynamic gestures optically distinct in terms of jaw height, whereas engaging the lips selectively facilitated perception of the dynamic gestures optically distinct in terms of their ...
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Keyword:
170204 Linguistic Processes incl. Speech Production and Comprehension; FOS Psychology
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URL: https://dx.doi.org/10.23641/asha.9911846.v1
https://asha.figshare.com/articles/Somatosensory_influence_on_visual_vowel_perception_Masapollo_Guenther_2019_/9911846/1
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