Tracing diurnal differences in brain anatomy with voxel-based morphometry - associations with sleep characteristics

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cris.lastimport.scopus2024-10-17T03:11:00Z
dc.abstract.enMultiple aspects of brain functioning, including arousal, motivation, and cognitive performance, are governed by circadian rhythmicity. Although the recent rise in the use of magnetic resonance imaging (MRI) has enabled investigations into the macroscopic correlates of the diurnal brain processes, neuroanatomical studies are scarce. The current work investigated how time-of-day (TOD) impacts white (WM) and grey matter (GM) volumes using voxel-based morphometry (VBM) in a large dataset (N = 72) divided into two equal, comparable subsamples to assess the replicability of effects. Furthermore, we aimed to assess how the magnitude of these diurnal differences was related to actigraphy-derived indices of sleep health. The results extend the current knowledge by reporting that TOD is predominantly associated with regional WM volume decreases. Additionally, alongside corroborating previously observed volumetric GM decreases, we provide the first evidence for positive TOD effects. Higher replicability was observed for WM, with the only two replicated GM clusters being volumetric increases in the amygdala and hippocampus, and decreases in the retro-splenial cortex, with the latter more pronounced in individuals with shorter sleep times. These findings implicate the existence of region-specific mechanisms behind GM effects, which might be related to cognitive processes taking place during wakefulness and homeostatic sleep pressure.
dc.affiliationWydział Psychologii Katowice
dc.contributor.authorZaręba, Michał Rafał
dc.contributor.authorFafrowicz, Magdalena
dc.contributor.authorMarek, Tadeusz
dc.contributor.authorOgińska, Halszka
dc.contributor.authorBeldzik, Ewa
dc.contributor.authorDomagalik, Aleksandra
dc.date.accessioned2024-04-17T09:04:30Z
dc.date.available2024-04-17T09:04:30Z
dc.date.created2023-12-23
dc.date.issued2024-01-08
dc.description.accesstimeafter_publication
dc.description.grantnumber2013/08/M/HS6/00042
dc.description.granttitleWpływ pory dnia na neuronalne mechanizmy leżące u podłoża zniekształceń w pamięci krótkotrwałej wywołanych interferencją o charakterze leksykalnym i przestrzennym - badanie fMRI
dc.description.issue2
dc.description.physical201–212
dc.description.versionfinal_published
dc.description.volume41
dc.identifier.doi10.1080/07420528.2024.2301944
dc.identifier.eissn1525-6073
dc.identifier.issn0742-0528
dc.identifier.urihttps://share.swps.edu.pl/handle/swps/633
dc.identifier.weblinkhttps://www.tandfonline.com/doi/full/10.1080/07420528.2024.2301944
dc.languageen
dc.pbn.affiliationpsychologia
dc.rightsClosedAccess
dc.rights.explanationCzasopismo płatne
dc.rights.questionNo_rights
dc.share.articleOTHER
dc.subject.enVoxel-based morphometry
dc.subject.entime-of-day
dc.subject.ensleep length
dc.subject.engrey matter
dc.subject.enwhite matter
dc.swps.sciencecloudsend
dc.titleTracing diurnal differences in brain anatomy with voxel-based morphometry - associations with sleep characteristics
dc.title.journalChronobiology International
dc.typeJournalArticle
dspace.entity.typeArticle