Positional firing properties of perirhinal cortex neurons

Neuronal activity in the perirhinal cortex was recorded while rats performed a spatial task on a four arm radial maze. The maze was defined by proximal multisensory cues on the arm surfaces and distal complex visual cues at the surround. During each recording session, rats were run in three conditio...

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Bibliographic Details
Published inNeuroreport Vol. 9; no. 13; p. 3013
Main Authors Burwell, R D, Shapiro, M L, O'Malley, M T, Eichenbaum, H
Format Journal Article
LanguageEnglish
Published England 14.09.1998
Subjects
Animals
Behavior, Animal - physiology
Cues
Electric Stimulation
Electrodes, Implanted
Entorhinal Cortex - cytology
Entorhinal Cortex - physiology
Hippocampus - physiology
Male
Maze Learning - physiology
Neurons - physiology
Odorants
Photic Stimulation
Rats
Rats, Long-Evans
Reward
Space Perception - physiology
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Summary:Neuronal activity in the perirhinal cortex was recorded while rats performed a spatial task on a four arm radial maze. The maze was defined by proximal multisensory cues on the arm surfaces and distal complex visual cues at the surround. During each recording session, rats were run in three conditions: baseline, a condition in which proximal and distal cues were manipulated, and a second baseline. Compared with the activity of hippocampal neurons in the same paradigm, a much smaller proportion of perirhinal neurons exhibited spatial selectivity and perirhinal place fields were larger than hippocampal place fields. Although perirhinal place fields exhibited a high degree of spatial tuning and reliability within a condition, they were not stable across conditions.
ISSN:0959-4965
DOI:10.1097/00001756-199809140-00017