Keitel, A. , Gross, J. and Kayser, C. (2020) Shared and modality-specific brain regions that mediate auditory and visual word comprehension. eLife, 9, e56972. (doi: 10.7554/elife.56972) (PMID:32831168) (PMCID:PMC7470824)
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Abstract
Visual speech carried by lip movements is an integral part of communication. Yet, it remains unclear in how far visual and acoustic speech comprehension are mediated by the same brain regions. Using multivariate classification of full-brain MEG data, we first probed where the brain represents acoustically and visually conveyed word identities. We then tested where these sensory-driven representations are predictive of participants’ trial-wise comprehension. The comprehension-relevant representations of auditory and visual speech converged only in anterior angular and inferior frontal regions and were spatially dissociated from those representations that best reflected the sensory-driven word identity. These results provide a neural explanation for the behavioural dissociation of acoustic and visual speech comprehension and suggest that cerebral representations encoding word identities may be more modality-specific than often upheld.
| Item Type: | Articles |
|---|---|
| Status: | Published |
| Refereed: | Yes |
| Glasgow Author(s) Enlighten ID: | Kayser, Professor Christoph and Gross, Professor Joachim and Keitel, Dr Anne |
| Creator Roles: | Keitel, A.Conceptualization, Resources, Formal analysis, Validation, Investigation, Visualization, Methodology, Writing – original draft, Writing – review and editing Gross, J.Supervision, Funding acquisition, Writing – original draft, Writing – review and editing Kayser, C.Conceptualization, Resources, Formal analysis, Supervision, Funding acquisition, Investigation, Visualization, Methodology, Writing – original draft, Writing – review and editing |
| Authors: | Keitel, A., Gross, J., and Kayser, C. |
| College/School: | College of Medical Veterinary and Life Sciences > School of Psychology & Neuroscience |
| Journal Name: | eLife |
| Publisher: | eLife Sciences Publications |
| ISSN: | 2050-084X |
| ISSN (Online): | 2050-084X |
| Copyright Holders: | Copyright © 2020 Keitel et al. |
| First Published: | First published in eLife 9: e56972 |
| Publisher Policy: | Reproduced under a Creative Commons License |
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