Correlated variability and its attentional modulation depend on anatomical connectivity.

ABSTRACT: Visual cortical neurons show variability in their responses to repeated presentations of a stimulus and a portion of this variability is shared across neurons. Attention may enhance visual perception by reducing shared spiking variability. However, shared variability and its attentional modulation are not consistent within or across cortical areas, and depend on additional factors such as neuronal type. A critical factor that has not been tested is actual anatomical connectivity. We measured spike count correlations among pairs of simultaneously recorded neurons in the primary visual cortex (V1) for which anatomical connectivity was inferred from spiking cross-correlations. Neurons were recorded in monkeys performing a contrast-change discrimination task requiring covert shifts in visual s

SUBMITTER: Shah S 

PROVIDER: S-EPMC11363273 | biostudies-literature | 2024 Aug

REPOSITORIES: biostudies-literature