Attention differentially modulates multiunit activity in the lateral geniculate nucleus and V1 of macaque monkeys.

ABSTRACT: Attention promotes the selection of behaviorally relevant sensory signals from the barrage of sensory information available. Visual attention modulates the gain of neuronal activity in all visual brain areas examined, although magnitudes of gain modulations vary across areas. For example, attention gain magnitudes in the dorsal lateral geniculate nucleus (LGN) and primary visual cortex (V1) vary tremendously across fMRI measurements in humans and electrophysiological recordings in behaving monkeys. We sought to determine whether these discrepancies are due simply to differences in species or measurement, or more nuanced properties unique to each visual brain area. We also explored whether robust and consistent attention effects, comparable to those measured in humans with fMRI, are observa

SUBMITTER: Shah S 

PROVIDER: S-EPMC8568737 | biostudies-literature | 2022 May

REPOSITORIES: biostudies-literature