Your browser doesn't support javascript.
loading
Tracing diurnal differences in brain anatomy with voxel-based morphometry - associations with sleep characteristics.
Zareba, Michal Rafal; Fafrowicz, Magdalena; Marek, Tadeusz; Oginska, Halszka; Beldzik, Ewa; Domagalik, Aleksandra.
Afiliación
  • Zareba MR; Department of Basic and Clinical Psychology and Psychobiology, Jaume I University, Castellon de la Plana, Spain.
  • Fafrowicz M; Centre for Brain Research, Jagiellonian University, Kraków, Poland.
  • Marek T; Department of Cognitive Neuroscience and Neuroergonomics, Institute of Applied Psychology, Jagiellonian University, Kraków, Poland.
  • Oginska H; Faculty of Psychology, SWPS University, Katowice, Poland.
  • Beldzik E; Department of Cognitive Neuroscience and Neuroergonomics, Institute of Applied Psychology, Jagiellonian University, Kraków, Poland.
  • Domagalik A; Department of Cognitive Neuroscience and Neuroergonomics, Institute of Applied Psychology, Jagiellonian University, Kraków, Poland.
Chronobiol Int ; 41(2): 201-212, 2024 02.
Article en En | MEDLINE | ID: mdl-38192011
ABSTRACT
Multiple 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 retrosplenial 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.
Asunto(s)
Palabras clave
Texto completo
Añadir a Mi BVS
Imprimir
XML
PubMed Links
Buscar en Google

Texto completo: 1 Colección: 01-internacional Base de datos: MEDLINE Asunto principal: Encéfalo / Ritmo Circadiano Tipo de estudio: Risk_factors_studies Límite: Humans Idioma: En Revista: Chronobiol Int Asunto de la revista: FISIOLOGIA Año: 2024 Tipo del documento: Article País de afiliación: España Pais de publicación: Reino Unido
Texto completo
Añadir a Mi BVS
Imprimir
XML
PubMed Links
Buscar en Google

Texto completo: 1 Colección: 01-internacional Base de datos: MEDLINE Asunto principal: Encéfalo / Ritmo Circadiano Tipo de estudio: Risk_factors_studies Límite: Humans Idioma: En Revista: Chronobiol Int Asunto de la revista: FISIOLOGIA Año: 2024 Tipo del documento: Article País de afiliación: España Pais de publicación: Reino Unido