Previous studies have reported 'preplay' of hippocampal neural activity patterns associated with events yet to occur. Silva et al. challenge this finding on the basis of large-scale recordings before and after experiences.
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Eichenbaum, H. Does the hippocampus preplay memories?. Nat Neurosci 18, 1701–1702 (2015). https://doi.org/10.1038/nn.4180
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DOI: https://doi.org/10.1038/nn.4180
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