Distinct codes for environment structure and symmetry in postrhinal and retrosplenial cortices.

ABSTRACT: Complex sensory information arrives in the brain from an animal's first-person ('egocentric') perspective. However, animals can efficiently navigate as if referencing map-like ('allocentric') representations. The postrhinal (POR) and retrosplenial (RSC) cortices are thought to mediate between sensory input and internal maps, combining egocentric representations of physical cues with allocentric head direction (HD) information. Here we show that neurons in the POR and RSC of female Long-Evans rats are tuned to distinct but complementary aspects of local space. Egocentric bearing (EB) cells recorded in square and L-shaped environments reveal that RSC cells encode local geometric features, while POR cells encode a more global account of boundary geometry. Additionally, POR HD cells can incorp

SUBMITTER: LaChance PA 

PROVIDER: S-EPMC11399390 | biostudies-literature | 2024 Sep

REPOSITORIES: biostudies-literature