Flexible perceptual encoding by discrete gamma events.

ABSTRACT: Cognitive processes underlying behaviour are linked to specific spatiotemporal patterns of neural activity in the neocortex^1-6. These patterns arise from synchronous synaptic activity⁷ and are often analysed as oscillations, but may also display aperiodic dynamics that are not well detected. Here we develop a novel analytical method decomposing patterned activity into discrete network events and use this approach to track gamma activity (30-80 Hz) in the mouse visual cortex (V1). We find that the gamma event rate varies with arousal and individual events can cluster in brief oscillatory bouts but also occur in isolation. Individual events synchronize neural firing across layers and promote enhanced visual encoding. V1 gamma events are evoked by patterned input from th

SUBMITTER: Perrenoud Q 

PROVIDER: S-EPMC12657229 | biostudies-literature | 2025 Nov

REPOSITORIES: biostudies-literature