Congruent aero-tactile stimuli bias perception of voicing continua

Multimodal integration is the formation of a coherent percept from different sensory inputs such as vision, audition, and somatosensation. Most research on multimodal integration in speech perception has focused on audio-visual integration. In recent years, audio-tactile integration has also been in...

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Main Authors: Dolly Goldenberg, Mark K. Tiede, Ryan T. Bennett, D. H. Whalen
Format: Article
Language:English
Published: Frontiers Media S.A. 2022-07-01
Series:Frontiers in Human Neuroscience
Subjects:
Online Access:https://www.frontiersin.org/articles/10.3389/fnhum.2022.879981/full
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author Dolly Goldenberg
Mark K. Tiede
Ryan T. Bennett
D. H. Whalen
D. H. Whalen
D. H. Whalen
author_facet Dolly Goldenberg
Mark K. Tiede
Ryan T. Bennett
D. H. Whalen
D. H. Whalen
D. H. Whalen
author_sort Dolly Goldenberg
collection DOAJ
description Multimodal integration is the formation of a coherent percept from different sensory inputs such as vision, audition, and somatosensation. Most research on multimodal integration in speech perception has focused on audio-visual integration. In recent years, audio-tactile integration has also been investigated, and it has been established that puffs of air applied to the skin and timed with listening tasks shift the perception of voicing by naive listeners. The current study has replicated and extended these findings by testing the effect of air puffs on gradations of voice onset time along a continuum rather than the voiced and voiceless endpoints of the original work. Three continua were tested: bilabial (“pa/ba”), velar (“ka/ga”), and a vowel continuum (“head/hid”) used as a control. The presence of air puffs was found to significantly increase the likelihood of choosing voiceless responses for the two VOT continua but had no effect on choices for the vowel continuum. Analysis of response times revealed that the presence of air puffs lengthened responses for intermediate (ambiguous) stimuli and shortened them for endpoint (non-ambiguous) stimuli. The slowest response times were observed for the intermediate steps for all three continua, but for the bilabial continuum this effect interacted with the presence of air puffs: responses were slower in the presence of air puffs, and faster in their absence. This suggests that during integration auditory and aero-tactile inputs are weighted differently by the perceptual system, with the latter exerting greater influence in those cases where the auditory cues for voicing are ambiguous.
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spelling doaj.art-ea813d7e45094406a78c7f9a140bb7182022-12-22T03:03:43ZengFrontiers Media S.A.Frontiers in Human Neuroscience1662-51612022-07-011610.3389/fnhum.2022.879981879981Congruent aero-tactile stimuli bias perception of voicing continuaDolly Goldenberg0Mark K. Tiede1Ryan T. Bennett2D. H. Whalen3D. H. Whalen4D. H. Whalen5Haskins Laboratories, New Haven, CT, United StatesHaskins Laboratories, New Haven, CT, United StatesDepartment of Linguistics, University of California, Santa Cruz, Santa Cruz, CA, United StatesHaskins Laboratories, New Haven, CT, United StatesThe Graduate Center, City University of New York (CUNY), New York, NY, United StatesDepartment of Linguistics, Yale University, New Haven, CT, United StatesMultimodal integration is the formation of a coherent percept from different sensory inputs such as vision, audition, and somatosensation. Most research on multimodal integration in speech perception has focused on audio-visual integration. In recent years, audio-tactile integration has also been investigated, and it has been established that puffs of air applied to the skin and timed with listening tasks shift the perception of voicing by naive listeners. The current study has replicated and extended these findings by testing the effect of air puffs on gradations of voice onset time along a continuum rather than the voiced and voiceless endpoints of the original work. Three continua were tested: bilabial (“pa/ba”), velar (“ka/ga”), and a vowel continuum (“head/hid”) used as a control. The presence of air puffs was found to significantly increase the likelihood of choosing voiceless responses for the two VOT continua but had no effect on choices for the vowel continuum. Analysis of response times revealed that the presence of air puffs lengthened responses for intermediate (ambiguous) stimuli and shortened them for endpoint (non-ambiguous) stimuli. The slowest response times were observed for the intermediate steps for all three continua, but for the bilabial continuum this effect interacted with the presence of air puffs: responses were slower in the presence of air puffs, and faster in their absence. This suggests that during integration auditory and aero-tactile inputs are weighted differently by the perceptual system, with the latter exerting greater influence in those cases where the auditory cues for voicing are ambiguous.https://www.frontiersin.org/articles/10.3389/fnhum.2022.879981/fullsensory integrationaction-perceptionmultimodal speech perceptionperceptual unitstactile perception
spellingShingle Dolly Goldenberg
Mark K. Tiede
Ryan T. Bennett
D. H. Whalen
D. H. Whalen
D. H. Whalen
Congruent aero-tactile stimuli bias perception of voicing continua
Frontiers in Human Neuroscience
sensory integration
action-perception
multimodal speech perception
perceptual units
tactile perception
title Congruent aero-tactile stimuli bias perception of voicing continua
title_full Congruent aero-tactile stimuli bias perception of voicing continua
title_fullStr Congruent aero-tactile stimuli bias perception of voicing continua
title_full_unstemmed Congruent aero-tactile stimuli bias perception of voicing continua
title_short Congruent aero-tactile stimuli bias perception of voicing continua
title_sort congruent aero tactile stimuli bias perception of voicing continua
topic sensory integration
action-perception
multimodal speech perception
perceptual units
tactile perception
url https://www.frontiersin.org/articles/10.3389/fnhum.2022.879981/full
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