Attentional Modulation of Neuronal Activity Depends on Neuronal Feature Selectivity.

ABSTRACT: Attention exerts a powerful influence on visual perception. The impact of attention on neuronal activity manifests at early visual information processing stages and progressively increases throughout the visual cortical hierarchy. However, the neuronal mechanisms of attention are unresolved. In particular, the rules governing attentional modulation of individual neurons, whether they are facilitated by or suppressed by attention, are not known. To obtain a more granular or neuron- and circuit-level understanding of the mechanisms of attention and to directly test the feature similarity gain model in V1, we compared attentional modulation with neuronal feature selectivity across a large population of V1 neurons in alert and behaving macaque monkeys trained on an attention-demanding contrast

SUBMITTER: Hembrook-Short JR 

PROVIDER: S-EPMC5531605 | biostudies-literature | 2017 Jul

REPOSITORIES: biostudies-literature