How do I remember? Let me count the ways.

摘要

In this issue, Diekelmann et al.1 provide an extensive and critical review of the rapidly growing literature on sleep-dependent memory consolidation. But rather than simply reviewing this literature, they have taken this opportunity to ask several important questions concerning off-Sine memory processing. Most gratifying is their decision not to simply look ever more deeply into frequently discussed questions, but rather to raise several new ones. They ask what kinds of memories are consolidated by sleep, what kinds of consolidation are accomplished, and what kinds of sleep are required. For the reader looking for a quick set of answers, they won't find them here or in the Diekelmann article. But the authors have done a superb job of organizing the literature to support a series of proposed answers, and I will offer a few more, all of which wili hopefully serve as a basis for further investigations.