Replay, Repair and Consolidation

Part of Advances in Neural Information Processing Systems 15 (NIPS 2002)

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Szabolcs Káli, Peter Dayan


A standard view of memory consolidation is that episodes are stored tem- porarily in the hippocampus, and are transferred to the neocortex through replay. Various recent experimental challenges to the idea of transfer, particularly for human memory, are forcing its re-evaluation. However, although there is independent neurophysiological evidence for replay, short of transfer, there are few theoretical ideas for what it might be doing. We suggest and demonstrate two important computational roles associated with neocortical indices.