4.7 Article

Forward and reverse hippocampal place-cell sequences during ripples

Journal

NATURE NEUROSCIENCE
Volume 10, Issue 10, Pages 1241-1242

Publisher

NATURE PUBLISHING GROUP
DOI: 10.1038/nn1961

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Funding

  1. NIMH NIH HHS [R01 MH054671-08, R01 MH054671-04, R01 MH054671-09, R01 MH054671, R01 MH054671-06, MH54671, R01 MH054671-03, R01 MH054671-05, R01 MH054671-07] Funding Source: Medline
  2. NINDS NIH HHS [R01 NS034994-07S1, R01 NS034994-05S1, R01 NS034994-07, R01 NS034994-09, R01 NS034994-10, R01 NS034994-05, R01 NS034994-06, R01 NS034994-08, R01 NS034994, R01 NS034994-04, NS34994, R01 NS034994-11] Funding Source: Medline

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We report that temporal spike sequences from hippocampal place neurons of rats on an elevated track recurred in reverse order at the end of a run, but in forward order in anticipation of the run, coinciding with sharp waves. Vector distances between the place fields were reflected in the temporal structure of these sequences. This bidirectional re-enactment of temporal sequences may contribute to the establishment of higher-order associations in episodic memory.

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