Population coding of figure and ground in natural image patches by V4 neurons.

ABSTRACT: Segmentation of a natural scene into objects and background is a fundamental but challenging task for recognizing objects. Investigating intermediate-level visual cortical areas with a focus on local information is a crucial step towards understanding the formation of the cortical representations of figure and ground. We examined the activity of a population of macaque V4 neurons during the presentation of natural image patches and their respective variations. The natural image patches were optimized to exclude the influence of global context but included various characteristics of local stimulus. Around one fourth of the patch-responsive V4 neurons exhibited significant modulation of firing activity that was dependent on the positional relation between the figural region of the stimulus a

SUBMITTER: Yamane Y 

PROVIDER: S-EPMC7319327 | biostudies-literature | 2020

REPOSITORIES: biostudies-literature