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. 2010 Mar 11;65(5):582-4.
doi: 10.1016/j.neuron.2010.02.022.

A dual role for hippocampal replay

Dori Derdikman  1 , May-Britt Moser
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A dual role for hippocampal replay

Dori Derdikman et al. Neuron. .
Free article

Abstract

Hippocampal place cells are active when the rat is at certain locations. The sequence of these active place cells is known to be rapidly replayed during sharp-wave-ripple events in the EEG. In this issue of Neuron, a study by Gupta et al. challenges previous notions that the replayed trajectories are solely a passive echo of past episodes. Rather, replay might also be an active process constructing a Tolmanian cognitive map of space, which makes flexible navigation possible.

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