Pre-sleep emotional induction affects REM rate and sympathetic activity during sleep

Diurnal emotional experience seems to affect sleep stages distribution, notably Rapid Eyes Movement (REM) and NREM3 sleep. However, this incidence remains unclear, especially for positive emotions. In addition, electrodermal activity (EDA), a marker of sympathetic activity, linked to emotional arousal, differs according to sleep stages, the frequency of electrodermal responses (EDRf) being consistently higher during NREM3 sleep. The aim was here...