期刊
JOURNAL OF SLEEP RESEARCH
卷 31, 期 6, 页码 -出版社
WILEY
DOI: 10.1111/jsr.13734
关键词
-
资金
- Bundesministerium fur Bildung und Forschung [01GQ1008]
Sleep not only contributes to memory consolidation, but also to post-sleep learning. It is believed that synaptic downscaling or other processes during sleep can increase learning capacity after sleep. This study investigated the effect of closed-loop acoustic stimulation during an afternoon nap on post-sleep encoding of verbal and non-verbal tasks, as well as the electroencephalogram during sleep and learning. The results showed that closed-loop acoustic stimulation enhanced slow oscillatory and spindle activity, but did not have a significant effect on encoding at the group level.
Sleep is able to contribute not only to memory consolidation, but also to post-sleep learning. The notion exists that either synaptic downscaling or another process during sleep increase post-sleep learning capacity. A correlation between augmentation of the sleep slow oscillation and hippocampal activation at encoding support the contribution of sleep to encoding of declarative memories. In the present study, the effect of closed-loop acoustic stimulation during an afternoon nap on post-sleep encoding of two verbal (word pairs, verbal learning and memory test) and non-verbal (figural pairs) tasks and on electroencephalogram during sleep and learning were investigated in young healthy adults (N = 16). Closed-loop acoustic stimulation enhanced slow oscillatory and spindle activity, but did not affect encoding at the group level. Subgroup analyses and comparisons with similar studies lead us to the tentative conclusion that further parameters such as time of day and subjects' cognitive ability influenced responses to closed-loop acoustic stimulation.
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