期刊
JOURNAL OF NEUROSCIENCE
卷 33, 期 3, 页码 1002-1013出版社
SOC NEUROSCIENCE
DOI: 10.1523/JNEUROSCI.3891-12.2013
关键词
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资金
- Silvo O. Conte award [MH094263]
- ONR MURI [N00014-10-1-0936]
Hippocampal neurons encode events within the context in which they occurred, a fundamental feature of episodic memory. Here we explored the sources of event and context information represented by hippocampal neurons during the retrieval of object associations in rats. Temporary inactivation of the medial prefrontal cortex differentially reduced the selectivity of rule-based object associations represented by hippocampal neuronal firing patterns but did not affect spatial firing patterns. In contrast, inactivation of the medial entorhinal cortex resulted in a pervasive reorganization of hippocampal mappings of spatial context and events. These results suggest distinct and cooperative prefrontal and medial temporal mechanisms in memory representation.
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