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. 2015 Oct 23;13(10):e1002285. doi: 10.1371/journal.pbio.1002285

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© 2015 Genzel, Robertson

This is an open-access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are properly credited.

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Fig 2 — (A) Slow oscillation (SO) present throughout NREM sleep; (B) slow wave activity (SWA) characteristic of deep NREM sleep; (C) sleep spindles characteristic of light NREM sleep; and (D) sharp wave ripple (SWR) associated with the hippocampus and memory processing. For details, please see Box 1.