期刊
SCIENCE
卷 324, 期 5926, 页码 516-519出版社
AMER ASSOC ADVANCEMENT SCIENCE
DOI: 10.1126/science.1167337
关键词
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资金
- Belgian Fonds National de la Recherche Scientifique (FNRS)
- Fondation Medicale Reine Elisabeth
- University of Liege
- Austrian Science Fund Erwin-Schrodinger Fellowship [J2470-B02]
- LUNDBECK-BCNBP
- Swiss National Science Foundation
- Daimler-Benz Foundation
- Pole dAttraction Interuniversitaire [PAI/P504]
Throughout the day, cognitive performance is under the combined influence of circadian processes and homeostatic sleep pressure. Some people perform best in the morning, whereas others are more alert in the evening. These chronotypes provide a unique way to study the effects of sleep-wake regulation on the cerebral mechanisms supporting cognition. Using functional magnetic resonance imaging in extreme chronotypes, we found that maintaining attention in the evening was associated with higher activity in evening than morning chronotypes in a region of the locus coeruleus and in a suprachiasmatic area (SCA) including the circadian master clock. Activity in the SCA decreased with increasing homeostatic sleep pressure. This result shows the direct influence of the homeostatic and circadian interaction on the neural activity underpinning human behavior.
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