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parahippocampal gyrus

a ridge (gyrus) on the medial (inner) surface of the temporal lobe of cerebral cortex, lying over the hippocampus. It is a component of the limbic system thought to be involved in spatial or topographic memory. A region of it, the parahippocampal place area (PPA), has been shown to have significant activity in response to complex visual scenes (e.g., city streets, rooms, landscapes) and may aid in place recognition. Also called parahippocampal cortex.

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Psychology term of the day

September 8th 2024

drift

drift

n.

1. a reduction in variation in genetic traits that can occur when sampling from continually smaller groups, such that some traits ultimately become excluded from possibility.

2. a reduction in the reliability of technical instruments orin the accuracy of observers over time. See instrument drift; observer drift.