scholarly journals Complementary Roles of Slow-Wave Sleep and Rapid Eye Movement Sleep in Emotional Memory Consolidation

2014 ◽  
Vol 25 (6) ◽  
pp. 1565-1575 ◽  
Author(s):  
S. A. Cairney ◽  
S. J. Durrant ◽  
R. Power ◽  
P. A. Lewis
Keyword(s):  
Eye Movement ◽  
Slow Wave ◽  
Memory Consolidation ◽  
Slow Wave Sleep ◽  
Emotional Memory ◽  
Rapid Eye Movement ◽  
Rapid Eye Movement Sleep

scholarly journals Sleep’s impact on emotional memory: A meta-analysis of whole-night, nap, and REM sleep effects

2019 ◽  
Author(s):  
Sarah K. Schäfer ◽  
Benedikt E. Wirth ◽  
Marlene Staginnus ◽  
Nicolas Becker ◽  
Tanja Michael ◽  
...  
Keyword(s):  
Eye Movement ◽  
Slow Wave ◽  
Memory Consolidation ◽  
Slow Wave Sleep ◽  
Meta Analysis ◽  
Emotional Memory ◽  
Sleep Stages ◽  
Rapid Eye Movement ◽  
Rapid Eye Movement Sleep ◽  
Neutral Material

SummaryNumerous studies have shown that sleep enhances the consolidation of episodic memory. However, it remains unclear whether this consolidation benefit is moderated by the emotional valence of the learned material. To clarify whether sleep selectively enhances the consolidation of emotional material, we conducted a meta-analysis including N = 1,059 observations. Overall, our results do not support this hypothesis. When only studies with a sleep-group wake-group comparison were included in the analysis (k = 22), the retention advantage for emotional over neutral material was not significantly different between sleep and wake groups. When studies initially lacking a wake-control group were included in the analysis after statistical estimation of wake-group parameters, the retention advantage for emotional material was significantly larger in wake-groups than in sleep-groups (k = 34). Interestingly, however, an additional analysis of k = 8 studies investigating the selective effects of rapid-eye-movement sleep and slow-wave sleep on emotional memory consolidation provided evidence for a selective enhancement of emotional over neutral memory consolidation after rapid-eye-movement sleep compared to slow-wave sleep. These results suggest that sleep does not generally enhance emotional memory consolidation over neutral memory consolidation. However, specific sleep stages might preferentially enhance consolidation of emotional and neutral material, respectively.

Effects of sleep-promoting factor from human urine on sleep cycle of cats

1981 ◽  
Vol 241 (4) ◽  
pp. E269-E274
Author(s):  
J. E. Garcia-Arraras
Keyword(s):  
Cerebrospinal Fluid ◽  
Eye Movement ◽  
Slow Wave ◽  
Human Urine ◽  
Slow Wave Sleep ◽  
Sleep Cycle ◽  
Rapid Eye Movement ◽  
Rapid Eye Movement Sleep ◽  
Artificial Cerebrospinal Fluid ◽  
Normal Sleep

Slow-wave sleep (SWS) and rapid-eye-movement sleep (REM) were recorded in cats for 32 h a) under control conditions, b) following intraventricular infusions of artificial cerebrospinal fluid (CSF), and c) following infusions of sleep-promoting factor S prepared from human urine (SPU). During the first 12 h after receiving artificial CSF, the cats slept 4.9 +/- 0.2 h in slow-wave sleep (SWS) and 1.4 +/- 0.1 h in REM. Similar values were obtained from the same cats under control conditions. After infusions of SPU, the duration of SWS in the same cats increased to an average of 6.9 +/- 0.5 h with no significant change in REM averaged over 12 h; a transient decrease of REM in the first 4 h was fully compensated in subsequent hours. The increased SWS induced by the sleep-promoting factor from human urine subsided after 12 h, and there was no compensatory increase in wakefulness during the subsequent 20 h. The normal sleep cycle was not affected. In cats, therefore, the primary effect of SPU is to increase normal SWS, with little effect on REM.

scholarly journals 0069 Spectral Analyses of Slow Wave Sleep and Rapid Eye Movement Sleep are Associated with Changes in Continuous Nocturnal Blood Pressure

SLEEP ◽  
2019 ◽  
Vol 42 (Supplement_1) ◽  
pp. A29-A29
Author(s):  
Ian M Greenlund ◽  
Hannah A Cunningham ◽  
Anne L Tikkanen ◽  
John J Durocher ◽  
Carl A Smoot ◽  
...  
Keyword(s):  
Blood Pressure ◽  
Eye Movement ◽  
Slow Wave ◽  
Slow Wave Sleep ◽  
Rapid Eye Movement ◽  
Rapid Eye Movement Sleep ◽  
Spectral Analyses ◽  
Nocturnal Blood Pressure
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