Mouth and Voice: A Relationship between Visual and Auditory Preference in the Human Superior Temporal Sulcus.

ABSTRACT: Cortex in and around the human posterior superior temporal sulcus (pSTS) is known to be critical for speech perception. The pSTS responds to both the visual modality (especially biological motion) and the auditory modality (especially human voices). Using fMRI in single subjects with no spatial smoothing, we show that visual and auditory selectivity are linked. Regions of the pSTS were identified that preferred visually presented moving mouths (presented in isolation or as part of a whole face) or moving eyes. Mouth-preferring regions responded strongly to voices and showed a significant preference for vocal compared with nonvocal sounds. In contrast, eye-preferring regions did not respond to either vocal or nonvocal sounds. The converse was also true: regions of the pSTS that showed a sig

SUBMITTER: Zhu LL 

PROVIDER: S-EPMC5354323 | biostudies-literature | 2017 Mar

REPOSITORIES: biostudies-literature