Is Learning While Sleeping Possible?
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Juliane Farthouat, while a Research Fellow of the FNRS under the direction of Philippe Peigneux, professor at the Faculty of Psychological Science and Education at Université libre de Bruxelles, ULB, used magnetoencephalography (MEG) to record the cerebral activity mirroring the statistical learning of series of sounds, both during slow wave sleep (a part of sleep during which brain activity is highly synchronized) and during wakefulness.
During sleep, participants were exposed to fast flows of pure sounds, either randomly organized or structured in such a way that the auditory stream could be statistically grouped into sets of 3 elements.
During sleep, brain MEG responses demonstrated preserved detection of isolated sounds, but no response reflecting statistical clustering. During wakefulness, however, all participants presented brain MEG responses reflecting the grouping of sounds into sets of 3 elements.
The results of this study suggest intrinsic limitations in de novo learning during slow wave sleep, that might confine the sleeping brain’s learning capabilities to simple, elementary associations.
Contacts and sources:
Philippe Peigneux UR2NF – Neuropsychology and Functional Neuroimaging Research Group au CRCN – Center for Research in Cognition and Neurosciences, ULB et UNI – ULB Neurosciences Institute
Valérie Bombaerts
Université libre de Bruxelles
Citation: Lack of frequency-tagged magnetic responses suggests statistical regularities remain undetected during NREM sleep
Juliane Farthouat, Anne Atas, Vincent Wens, Xavier De Tiege, Philippe Peigneux.. Scientific Reports, 2018; 8 (1) DOI: 10.1038/s41598-018-30105-5
Source:
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