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Brain Regions That Respond to Faces, Voices, and People

Korolkova, O., Tsantani, M., Lavan, N. & Garrido, L. ORCID: 0000-0002-1955-6506 (2019). Brain Regions That Respond to Faces, Voices, and People. Perception, 48(2), doi: 10.1177/0301006619863862


We aimed to identify brain regions that respond to people, independently of the modality (auditory/visual). In two functional magnetic resonance imaging studies, participants completed three functional localizers: visual (silent videos of nonspeaking faces vs. scenes), auditory (voices vs. environmental sounds), and audiovisual (videos with speaking people vs. scenes with sounds). Using data from Study 1 (N = 30), we conducted a conjunction analysis of the three localizers to identify regions that responded more to faces, voices, and audiovisual faces voices than to control stimuli. The right posterior STS showed most consistent people-selective activation in 24/30 participants. In Study 2 (N = 22), we identified the people-selective rpSTS in each participant, and extracted mean activation and multivoxel response patterns in this region from independent data. The rpSTS responded significantly more to audiovisual stimuli than to faces or voices and more to voices than faces. While face- and voice-responsive patterns correlated moderately, the correlations were significantly higher between the audiovisual patterns and the face- or voice-responsive patterns. These results suggest that not all voxels in the people-selective rpSTS respond to faces and voices similarly. The rpSTS may contain multimodal voxels that respond to people independently of modality, but also unimodal voxels that respond only to faces or to voices.

Publication Type: Article
Additional Information: Korolkova, O., Tsantani, M., Lavan, N. and Garrido, L. (2019). Brain Regions That Respond to Faces, Voices, and People. Perception, 48(2), doi: 10.1177/0301006619863862. Copyright © 2019, the authors. DOI: Re-use is restricted to non-commercial and no derivatives.
Subjects: B Philosophy. Psychology. Religion > BF Psychology
R Medicine > RC Internal medicine > RC0321 Neuroscience. Biological psychiatry. Neuropsychiatry
Departments: School of Health & Psychological Sciences > Psychology
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