Dynamic Reorganization of Neuronal Activity Patterns in Parietal Cortex.

ABSTRACT: Neuronal representations change as associations are learned between sensory stimuli and behavioral actions. However, it is poorly understood whether representations for learned associations stabilize in cortical association areas or continue to change following learning. We tracked the activity of posterior parietal cortex neurons for a month as mice stably performed a virtual-navigation task. The relationship between cells' activity and task features was mostly stable on single days but underwent major reorganization over weeks. The neurons informative about task features (trial type and maze locations) changed across days. Despite changes in individual cells, the population activity had statistically similar properties each day and stable information for over a week. As mice learned addi

SUBMITTER: Driscoll LN 

PROVIDER: S-EPMC5718200 | biostudies-literature | 2017 Aug

REPOSITORIES: biostudies-literature