Overnight exposure to pink noise could jeopardize sleep-dependent insight and pattern detection

Accumulated evidence from the past decades suggests that sleep plays a crucial role in memory consolidation and the facilitation of higher-level cognitive processes such as abstraction and gist extraction. In addition, recent studies show that applying pink noise during sleep can further enhance sle...

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Main Authors: Beverly Vickrey, Itamar Lerner
Format: Article
Language:English
Published: Frontiers Media S.A. 2023-12-01
Series:Frontiers in Human Neuroscience
Subjects:
Online Access:https://www.frontiersin.org/articles/10.3389/fnhum.2023.1302836/full
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author Beverly Vickrey
Itamar Lerner
author_facet Beverly Vickrey
Itamar Lerner
author_sort Beverly Vickrey
collection DOAJ
description Accumulated evidence from the past decades suggests that sleep plays a crucial role in memory consolidation and the facilitation of higher-level cognitive processes such as abstraction and gist extraction. In addition, recent studies show that applying pink noise during sleep can further enhance sleep-dependent memory consolidation, potentially by modulating sleep physiology through stochastic resonance. However, whether this enhancement extends to higher cognitive processes remains untested. In this study, we investigated how the application of open-loop pink noise during sleep influences the gain of insight into hidden patterns. Seventy-two participants were assigned to three groups: daytime-wake, silent sleep, and sleep with pink noise. Each group completed the number reduction task, an established insight paradigm known to be influenced by sleep, over two sessions with a 12-h interval. Sleep groups were monitored by the DREEM 3 headband in home settings. Contrary to our prediction, pink noise did not induce an increase in insight compared to silent sleep and was statistically more similar to the wake condition despite evidence for its typical influence on sleep physiology. Particularly, we found that pink noise limited the time spent in the initial cycle of N1 just after sleep onset, while time spent in N1 positively predicted insight. These results echo recent suggestions that the time in the initial cycle of N1 plays a critical role in insight formation. Overall, our results suggest that open-loop pink noise during sleep may be detrimental to insight formation and creativity due to the alterations it causes to normal sleep architecture.
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spelling doaj.art-936003c6a4b347bd91a478570970f2a32023-12-01T13:31:52ZengFrontiers Media S.A.Frontiers in Human Neuroscience1662-51612023-12-011710.3389/fnhum.2023.13028361302836Overnight exposure to pink noise could jeopardize sleep-dependent insight and pattern detectionBeverly VickreyItamar LernerAccumulated evidence from the past decades suggests that sleep plays a crucial role in memory consolidation and the facilitation of higher-level cognitive processes such as abstraction and gist extraction. In addition, recent studies show that applying pink noise during sleep can further enhance sleep-dependent memory consolidation, potentially by modulating sleep physiology through stochastic resonance. However, whether this enhancement extends to higher cognitive processes remains untested. In this study, we investigated how the application of open-loop pink noise during sleep influences the gain of insight into hidden patterns. Seventy-two participants were assigned to three groups: daytime-wake, silent sleep, and sleep with pink noise. Each group completed the number reduction task, an established insight paradigm known to be influenced by sleep, over two sessions with a 12-h interval. Sleep groups were monitored by the DREEM 3 headband in home settings. Contrary to our prediction, pink noise did not induce an increase in insight compared to silent sleep and was statistically more similar to the wake condition despite evidence for its typical influence on sleep physiology. Particularly, we found that pink noise limited the time spent in the initial cycle of N1 just after sleep onset, while time spent in N1 positively predicted insight. These results echo recent suggestions that the time in the initial cycle of N1 plays a critical role in insight formation. Overall, our results suggest that open-loop pink noise during sleep may be detrimental to insight formation and creativity due to the alterations it causes to normal sleep architecture.https://www.frontiersin.org/articles/10.3389/fnhum.2023.1302836/fullsleepmemory consolidationextraction of regularitiesinsightpattern recognitionpink noise
spellingShingle Beverly Vickrey
Itamar Lerner
Overnight exposure to pink noise could jeopardize sleep-dependent insight and pattern detection
Frontiers in Human Neuroscience
sleep
memory consolidation
extraction of regularities
insight
pattern recognition
pink noise
title Overnight exposure to pink noise could jeopardize sleep-dependent insight and pattern detection
title_full Overnight exposure to pink noise could jeopardize sleep-dependent insight and pattern detection
title_fullStr Overnight exposure to pink noise could jeopardize sleep-dependent insight and pattern detection
title_full_unstemmed Overnight exposure to pink noise could jeopardize sleep-dependent insight and pattern detection
title_short Overnight exposure to pink noise could jeopardize sleep-dependent insight and pattern detection
title_sort overnight exposure to pink noise could jeopardize sleep dependent insight and pattern detection
topic sleep
memory consolidation
extraction of regularities
insight
pattern recognition
pink noise
url https://www.frontiersin.org/articles/10.3389/fnhum.2023.1302836/full
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