| Literature DB >> 33159859 |
Nick T M Robinson1, Lucie A L Descamps2, Lloyd E Russell2, Moritz O Buchholz2, Brendan A Bicknell2, Georgy K Antonov2, Joanna Y N Lau2, Rebecca Nutbrown2, Christoph Schmidt-Hieber2, Michael Häusser3.
Abstract
The hippocampus is crucial for spatial navigation and episodic memory formation. Hippocampal place cells exhibit spatially selective activity within an environment and have been proposed to form the neural basis of a cognitive map of space that supports these mnemonic functions. However, the direct influence of place cell activity on spatial navigation behavior has not yet been demonstrated. Using an 'all-optical' combination of simultaneous two-photon calcium imaging and two-photon optogenetics, we identified and selectively activated place cells that encoded behaviorally relevant locations in a virtual reality environment. Targeted stimulation of a small number of place cells was sufficient to bias the behavior of animals during a spatial memory task, providing causal evidence that hippocampal place cells actively support spatial navigation and memory.Entities:
Keywords: all-optical interrogation; behavior; hippocampus; inhibition; memory; place cell; spatial navigation; two-photon calcium imaging; two-photon optogenetics; virtual reality
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Year: 2020 PMID： 33159859 PMCID： PMC7754708 DOI： 10.1016/j.cell.2020.09.061
Source DB: PubMed Journal: Cell ISSN： 0092-8674 Impact factor: 41.582