期刊
COGNITION
卷 158, 期 -, 页码 44-55出版社
ELSEVIER SCIENCE BV
DOI: 10.1016/j.cognition.2016.10.007
关键词
Decision-making; Circadian rhythms; Chess; Human chronobiology
资金
- Consejo Nacional de Investigaciones Cientificas y Tecnicas (CONICET), Universidad Nacional de Quilmes, Agencia Nacional de Promocion Cientifica y Tecnologica
- CONICET
- Microsoft Faculty Fellowship
- FONCyT Argentina [PICT-2013-1653]
- James S. McDonnell Foundation 21st Century Science Initiative in Understanding Human Cognition - Scholar Award
- FONCyT
- Universidad Nacional de Quilmes
Human behavior and physiology exhibit diurnal fluctuations. These rhythms are entrained by light and social cues, with vast individual differences in the phase of entrainment - referred as an individual's chronotype - ranging in a continuum between early larks and late owls. Understanding whether decision-making in real-life situations depends on the relation between time of the day and an individual's diurnal preferences has both practical and theoretical implications. However, answering this question has remained elusive because of the difficulty of measuring precisely the quality of a decision in real-life scenarios. Here we investigate diurnal variations in decision-making as a function of an individual's chronotype capitalizing on a vast repository of human decisions: online chess servers. In a chess game, every player has to make around 40 decisions using a finite time budget and both the time and quality of each decision can be accurately determined. We found reliable diurnal rhythms in activity and decision-making policy. During the morning, players adopt a prevention focus policy (slower and more accurate decisions) which is later modified to a promotion focus (faster but less accurate decisions), without daily changes in performance. (C) 2016 Elsevier B.V. All rights reserved.
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