Transformation of acoustic information to sensory decision variables in the parietal cortex.

ABSTRACT: The process by which sensory evidence contributes to perceptual choices requires an understanding of its transformation into decision variables. Here, we address this issue by evaluating the neural representation of acoustic information in the auditory cortex-recipient parietal cortex, while gerbils either performed a two-alternative forced-choice auditory discrimination task or while they passively listened to identical acoustic stimuli. During task engagement, stimulus identity decoding performance from simultaneously recorded parietal neurons significantly correlated with psychometric sensitivity. In contrast, decoding performance during passive listening was significantly reduced. Principal component and geometric analyses revealed the emergence of low-dimensional encoding of linearly

SUBMITTER: Yao JD 

PROVIDER: S-EPMC9926273 | biostudies-literature | 2023 Jan

REPOSITORIES: biostudies-literature