Journal
TRENDS IN COGNITIVE SCIENCES
Volume 22, Issue 6, Pages 491-503Publisher
ELSEVIER SCIENCE LONDON
DOI: 10.1016/j.tics.2018.03.009
Keywords
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Funding
- European Research Council (ERC) [681607]
- Cardiff University
- UCLA
- NIH [MH60670]
- European Research Council under the European Union's Seventh Framework Program (FP7)/ERC (European Research Council) [609819]
- European Research Council (ERC) [681607] Funding Source: European Research Council (ERC)
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Creative thought relies on the reorganisation of existing knowledge. Sleep is known to be important for creative thinking, but there is a debate about which sleep stage is most relevant, and why. We address this issue by proposing that rapid eye movement sleep, or 'REM', and non-REM sleep facilitate creativity in different ways. Memory replay mechanisms in non-REM can abstract rules from corpuses of learned information, while replay in REM may promote novel associations. We propose that the iterative interleaving of REM and non-REM across a night boosts the formation of complex knowledge frameworks, and allows these frameworks to be restructured, thus facilitating creative thought. We outline a hypothetical computational model which will allow explicit testing of these hypotheses.
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