ArticleBehavioral sciences (Basel, Switzerland)2026
Sleep Architecture and Risk-Taking in Adolescents and Young Adults: Independent Contributions of REM Sleep, Sigma Activity, and Morning Cortisol.
Article in Behavioral sciences (Basel, Switzerland), 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.
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Abstract
Insufficient sleep is highly prevalent among adolescents and young adults and has well-documented effects on neural systems underlying decision-making and risk-taking behavior. While prior research has linked sleep deprivation to poorer decision-making broadly, less is known about how specific features of sleep architecture contribute to risk-taking behavior, or whether the cortisol awakening response (CAR), shaped in part by the preceding night's sleep, represents an independent hormonal pathway linking sleep physiology to morning behavioral outcomes. The present study used a cross-sectional design to examine associations among objective sleep architecture, the CAR, and next-morning risk-taking behavior in a community sample of adolescents and young adults. We predicted that (1) greater rapid eye movement (REM) sleep percentage would be associated with better overall task performance, and (2) greater N2-N3 sigma power would be associated with reduced risk-taking under uncertainty. The role of the CAR was examined exploratorily. Fifty-five adolescents and young adults (aged 15-34; mean age = 18.9 years,
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