Cognitive effects of split and continuous sleep schedules in adolescents differ according to total sleep opportunity
| Autor: | Joshua J. Gooley, S Azrin Jamaluddin, Alyssa S C Ng, Ruth L. F. Leong, June C. Lo, Shohreh Ghorbani, Michael W. L. Chee, Ju Lynn Ong, Nicholas I Y N Chee, TeYang Lau |
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| Rok vydání: | 2020 |
| Předmět: |
Adult
cognition medicine.medical_specialty Adolescent media_common.quotation_subject Polysomnography Cognitive Affective and Behavioral Neuroscience of Sleep Audiology 03 medical and health sciences Young Adult 0302 clinical medicine Physiology (medical) vigilance medicine Humans Effects of sleep deprivation on cognitive performance adolescents Wakefulness AcademicSubjects/MED00385 media_common medicine.diagnostic_test Working memory business.industry AcademicSubjects/SCI01870 Basic cognitive functions Cognition continuous sleep split sleep Nap Editor's Choice Mood 030228 respiratory system Sleep Deprivation Neurology (clinical) naps business Sleep 030217 neurology & neurosurgery Vigilance (psychology) AcademicSubjects/MED00370 |
| Zdroj: | Sleep |
| ISSN: | 1550-9109 |
| Popis: | Study Objectives We compared the basic cognitive functions of adolescents undergoing split (nocturnal sleep + daytime nap) and continuous nocturnal sleep schedules when total sleep opportunity was either below or within the recommended range (i.e. 6.5 or 8 h). Methods Adolescent participants (age: 15–19 year) in the 8-h split (n = 24) and continuous (n = 29) sleep groups were compared with 6.5-h split and continuous sleep groups from a previous study (n = 58). These protocols involved two baseline nights (9-h time-in-bed [TIB]), 5 nights of sleep manipulation, 2 recovery nights (9-h TIB), followed by a second cycle of sleep manipulation (3 nights) and recovery (2 nights). Cognitive performance, subjective sleepiness, and mood were evaluated daily; sleep was assessed using polysomnography. Results Splitting 6.5 h of sleep with a mid-afternoon nap offered a boost to cognitive function compared to continuous nocturnal sleep. However, when total TIB across 24 h increased to 8 h, the split and continuous sleep groups performed comparably in tests evaluating vigilance, working memory, executive function, processing speed, subjective sleepiness, and mood. Conclusions In adolescents, the effects of split sleep on basic cognitive functions vary by the amount of total sleep obtained. As long as the total sleep opportunity across 24 h is within the recommended range, students may fulfill sleep requirements by adopting a split sleep schedule consisting of a shorter period of nocturnal sleep combined with a mid-afternoon nap, without significant impact on basic cognitive functions. Clinical trial registration NCT04044885. |
| Databáze: | OpenAIRE |
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