Systematic population spike delays across cortical layers within and between primary sensory areas.

ABSTRACT: The coordinated propagation of activity across cortical layers enables simultaneous local computation and inter-areal interactions. A pattern of upward propagation from deeper to more superficial layers, which has been repeatedly demonstrated in spontaneous activity, would allow these functions to occur in parallel. But it remains unclear whether upward propagation also occurs for stimulus evoked activity, and how it relates to activity in other cortical areas. Here we used a new method to analyze relative delays between spikes obtained from simultaneous laminar recordings in primary sensory cortex (S1) of both hemispheres. The results identified systematic spike delays across cortical layers that showed a general upward propagation of activity in evoked and spontaneous activity. Systemati

SUBMITTER: Plomp G 

PROVIDER: S-EPMC5681572 | biostudies-literature | 2017 Nov

REPOSITORIES: biostudies-literature