Sleep strengthens resting-state functional communication between brain areas involved in the consolidation of problem-solving skills.
Journal
Learning & memory (Cold Spring Harbor, N.Y.)
ISSN: 1549-5485
Titre abrégé: Learn Mem
Pays: United States
ID NLM: 9435678
Informations de publication
Date de publication:
Jan 2023
Jan 2023
Historique:
received:
03
08
2022
accepted:
22
12
2022
pmc-release:
01
01
2024
entrez:
20
1
2023
pubmed:
21
1
2023
medline:
25
1
2023
Statut:
epublish
Résumé
Sleep consolidates procedural memory for motor skills, and this process is associated with strengthened functional connectivity in hippocampal-striatal-cortical areas. It is unknown whether similar processes occur for procedural memory that requires cognitive strategies needed for problem-solving. It is also unclear whether a full night of sleep is indeed necessary for consolidation to occur, compared with a daytime nap. We examined how resting-state functional connectivity within the hippocampal-striatal-cortical network differs after offline consolidation intervals of sleep, nap, or wake. Resting-state fMRI data were acquired immediately before and after training on a procedural problem-solving task that requires the acquisition of a novel cognitive strategy and immediately prior to the retest period (i.e., following the consolidation interval). ROI to ROI and seed to whole-brain functional connectivity analyses both specifically and consistently demonstrated strengthened hippocampal-prefrontal functional connectivity following a period of sleep versus wake. These results were associated with task-related gains in behavioral performance. Changes in functional communication were also observed between groups using the striatum as a seed. Here, we demonstrate that at the behavioral level, procedural strategies benefit from both a nap and a night of sleep. However, a full night of sleep is associated with enhanced functional communication between regions that support problem-solving skills.
Identifiants
pubmed: 36669853
pii: 30/1/25
doi: 10.1101/lm.053638.122
pmc: PMC9872190
doi:
Types de publication
Journal Article
Langues
eng
Sous-ensembles de citation
IM
Pagination
25-35Informations de copyright
© 2023 van den Berg et al.; Published by Cold Spring Harbor Laboratory Press.
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