Mesoscale functional organization and connectivity of color, disparity, and naturalistic texture in human second visual area.

ABSTRACT: Although parallel processing has been extensively studied in the low-level geniculostriate pathway and the high-level dorsal and ventral visual streams, less is known at the intermediate-level visual areas. In this study, we employed high-resolution fMRI at 7T to investigate the columnar and laminar organizations for color, disparity, and naturalistic texture in the human secondary visual cortex (V2), and their informational connectivity with lower- and higher-order visual areas. Although fMRI activations in V2 showed reproducible interdigitated color-selective thin and disparity-selective thick 'stripe' columns, we found no clear evidence of columnar organization for naturalistic textures. Cortical depth-dependent analyses revealed the strongest color-selectivity in the superficial layers

SUBMITTER: Ai H 

PROVIDER: S-EPMC11925451 | biostudies-literature | 2025 Mar

REPOSITORIES: biostudies-literature