Intelligibility of audiovisual sentences drives multivoxel response patterns in human superior temporal cortex.

ABSTRACT: Regions of the human posterior superior temporal gyrus and sulcus (pSTG/S) respond to the visual mouth movements that constitute visual speech and the auditory vocalizations that constitute auditory speech, and neural responses in pSTG/S may underlie the perceptual benefit of visual speech for the comprehension of noisy auditory speech. We examined this possibility through the lens of multivoxel pattern responses in pSTG/S. BOLD fMRI data was collected from 22 participants presented with speech consisting of English sentences presented in five different formats: visual-only; auditory with and without added auditory noise; and audiovisual with and without auditory noise. Participants reported the intelligibility of each sentence with a button press and trials were sorted post-hoc into those

SUBMITTER: Rennig J 

PROVIDER: S-EPMC8819942 | biostudies-literature | 2022 Feb

REPOSITORIES: biostudies-literature