Pop-out search instigates beta-gated feature selectivity enhancement across V4 layers.

ABSTRACT: Visual search is a workhorse for investigating how attention interacts with processing of sensory information. Attentional selection has been linked to altered cortical sensory responses and feature preferences (i.e., tuning). However, attentional modulation of feature selectivity during search is largely unexplored. Here we map the spatiotemporal profile of feature selectivity during singleton search. Monkeys performed a search where a pop-out feature determined the target of attention. We recorded laminar neural responses from visual area V4. We first identified "feature columns" which showed preference for individual colors. In the unattended condition, feature columns were significantly more selective in superficial relative to middle and deep layers. Attending a stimulus increased sel

SUBMITTER: Westerberg JA 

PROVIDER: S-EPMC8685673 | biostudies-literature | 2021 Dec

REPOSITORIES: biostudies-literature