Journal
CEREBRAL CORTEX
Volume 30, Issue 3, Pages 1708-1715Publisher
OXFORD UNIV PRESS INC
DOI: 10.1093/cercor/bhz197
Keywords
Associative-learning; sigma; sleep; slow-waves; theta
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Funding
- Blavatnik family Foundation
- European Molecular Biology Organization (EMBO) fellowship [ALTF 33-2016]
- Fondo Nacional de Desarrollo Cientifico y Tecnologico (FONDECYT) [1171200]
- Wellcome Trust [WT093811MA]
- Rob and Cheryl McEwen Fund for Brain Research
- Royal Society-Kohn International fellowship [NF150851]
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Recent evidence indicates that humans can learn entirely new information during sleep. To elucidate the neural dynamics underlying sleep-learning, we investigated brain activity during auditory-olfactory discriminatory associative learning in human sleep. We found that learning-related delta and sigma neural changes are involved in early acquisition stages, when new associations are being formed. In contrast, learning-related theta activity emerged in later stages of the learning process, after tone-odor associations were already established. These findings suggest that learning new associations during sleep is signaled by a dynamic interplay between slow-waves, sigma, and theta activity.
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