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Sleep has been shown to enhance creativity, but the reason for this enhancement is not entirely known. There are several different physiologic states associated with sleep. In addition to rapid (REM) and non-rapid eye movement (NREM) sleep, NREM sleep can be broken down into Stages (1–4) that are characterized by the degree of EEG slow-wave activity. In addition, during NREM sleep the cyclic alternating...
Cyclic alternating pattern (CAP) A1 subtypes, characterized by high-voltage slow waves, are generated by the frontal cortex and are suspected to have a role in cognitive processing during NREM sleep. Conversely, CAP A2 and A3 subtypes are characterized by variable amounts of rapid EEG potentials arising from the parietal–occipital areas and often coincide with arousals. We tested the hypothesis that...
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