Hippocampal place codes are gated by behavioral engagement.
Hippocampal place codes are gated by behavioral engagement.
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DOI:
10.1038/s41593-022-01050-4
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发表时间:
2022-05
影响因子:
25
通讯作者:
Harvey, Christopher D.
中科院分区:
文献类型:
--
作者:
Pettit, Noah L.;Yuan, Xintong C.;Harvey, Christopher D.
As animals explore an environment, the hippocampus is thought to automatically form and maintain a place code by combining sensory and self-motion signals. Instead, we observed an extensive degradation of the place code when mice voluntarily disengaged from a virtual navigation task, remarkably even as they continued to traverse the identical environment. Internal states, therefore, can strongly gate spatial maps and reorganize hippocampal activity even without sensory and self-motion changes. The authors found that the expression of spatial maps in the hippocampus is modulated by the internal state of an animal. Thus, the brain’s code for spatial positions within an environment can transform even without changes to the external world.
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