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- W1134179919 abstract "While a substantial body of evidence links slow wave sleep (SWS) to the processing of declarative memory, a small but growing number of studies indicate a role for rapid eye movement (REM) sleep in the processing of declarative memories with an emotional tone. One possible explanation for these results is that tasks administered for sleep-related emotional declarative learning are different from those used in studies investigating sleeprelated neutral declarative learning. Another, more intriguing possibility is that imbuing a declarative task with emotional qualities shifts its dependence from SWS to REM sleep. Here we examine if spatial memory, previously shown to be strongly associated with SWS, shifts to a REM sleep association if emotional elements are associated with the task. Participants navigated two virtual towns, one high emotion (high emotion or dysphoric task) and one low emotion (low emotion task). Half of participants were subjected to a REM deprivation procedure during post-task sleep (REMD group) while others underwent control awakenings after 25 minutes of REM (CTL group). Memory of the location of visited areas was tested 10 to 12 days later. The REMD group performed less well than the CTL group on the emotional task, the performance on which correlated with the amount REM sleep. In contrast, the REMD group performed better than the CTL group on the neutral task, the performance on which correlated with Stage 4 sleep. This demonstrates, for the first time, that the presence of emotions during a task may modulate the sleep stage with which its consolidation is associated." @default.
- W1134179919 created "2016-06-24" @default.
- W1134179919 creator A5025866689 @default.
- W1134179919 date "2011-06-02" @default.
- W1134179919 modified "2023-09-27" @default.
- W1134179919 title "The role of sleep and dreaming in the processing of episodic memory" @default.
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