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Beyond the low frequency fluctuations : morning and evening differences in human brain
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Except where otherwise noted, this item's license is described as Udzielam licencji. Uznanie autorstwa 4.0 Międzynarodowa
Beyond the low frequency fluctuations : morning and evening differences in human brain
Bibliographic description
| title: | Beyond the low frequency fluctuations : morning and evening differences in human brain |
| author: | Fąfrowicz Magdalena  , Bohaterewicz Bartosz , Ceglarek Anna , Cichocka Monika , Lewandowska Koryna , Sikora-Wachowicz Barbara , Kontrymowicz-Ogińska Halszka , Bereś Anna , Olszewska Justyna, Marek Tadeusz
|
| journal title: | Frontiers in Human Neuroscience |
| volume: | 13 |
| date of publication : | 2019 |
| article ID: | 288 |
| ISSN: |
1662-5161 |
| DOI: | |
| URL: |
https://www.frontiersin.org/articles/10.3389/fnhum.2019.00288/full |
| date accessed: |
2019-09-03 |
| language: | English |
| journal language: | English |
| abstract in English: | Human performance, alertness, and most biological functions express rhythmic fluctuations across a 24-h-period. This phenomenon is believed to originate from differences in both circadian and homeostatic sleep-wake regulatory processes. Interactions between these processes result in time-of-day modulations of behavioral performance as well as brain activity patterns. Although the basic mechanism of the 24-h clock is conserved across evolution, there are interindividual differences in the timing of sleep-wake cycles, subjective alertness and functioning throughout the day. The study of circadian typology differences has increased during the last few years, especially research on extreme chronotypes, which provide a unique way to investigate the effects of sleep-wake regulation on cerebral mechanisms. Using functional magnetic resonance imaging (fMRI), we assessed the influence of chronotype and time-of-day on resting-state functional connectivity. Twenty-nine extreme morning- and 34 evening-type participants underwent two fMRI sessions: about 1 h after wake-up time (morning) and about 10 h after wake-up time (evening), scheduled according to their declared habitual sleep-wake pattern on a regular working day. Analysis of obtained neuroimaging data disclosed only an effect of time of day on resting-state functional connectivity; there were different patterns of functional connectivity between morning (MS) and evening (ES) sessions. The results of our study showed no differences between extreme morning-type and evening-type individuals. We demonstrate that circadian and homeostatic influences on the resting-state functional connectivity have a universal character, unaffected by circadian typology. |
| keywords in English: | resting state-fMRI, diurnal (circadian) rhythm, morning and evening chronotypes, ALFF/fALFF, functional connectivity |
| number of pulisher's sheets: | 0,45 |
| affiliation: | Wydział Zarządzania i Komunikacji Społecznej : Instytut Psychologii Stosowanej, Wydział Lekarski : Zakład Radiologii, Pion Prorektora ds. badań naukowych i funduszy strukturalnych : Małopolskie Centrum Biotechnologii |
| type: | journal article |
| subtype: | academic paper |
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Except where otherwise noted, this item's license is described as Udzielam licencji. Uznanie autorstwa 4.0 Międzynarodowa
Projekt „Repozytorium otwartego dostępu do dorobku naukowego i dydaktycznego UJ” współfinansowany w ramach poddziałania 2.3.1 „Cyfrowe udostępnianie zasobów nauki” Programu Operacyjnego Polska Cyfrowa z Europejskiego Funduszu Rozwoju Regionalnego i budżetu państwa na podstawie umowy o dofinansowanie nr POPC.02.03.01-00-0030/17-00
