Columnar processing of border ownership in primate visual cortex.

ABSTRACT: To understand a visual scene, the brain segregates figures from background by assigning borders to foreground objects. Neurons in primate visual cortex encode which object owns a border (border ownership), but the underlying circuitry is not understood. Here, we used multielectrode probes to record from border ownership-selective units in different layers in macaque visual area V4 to study the laminar organization and timing of border ownership selectivity. We find that border ownership selectivity occurs first in deep layer units, in contrast to spike latency for small stimuli in the classical receptive field. Units on the same penetration typically share the preferred side of border ownership, also across layers, similar to orientation preference. Units are often border ownership-selecti

SUBMITTER: Franken TP 

PROVIDER: S-EPMC8631947 | biostudies-literature | 2021 Nov

REPOSITORIES: biostudies-literature