Citation

Hisler G, Krizan Z. Behav. Sleep Med. 2019; 17(3): 364-377.

Affiliation

Department of Psychology , Iowa State University , W112 Lagomarcino Hall, Ames , Iowa , 50011 . Tele. E-mail: zkrizan@iastate.edu.

Copyright

(Copyright © 2019, Informa - Taylor and Francis Group)

DOI

10.1080/15402002.2017.1357122

PMID

28745529

Abstract

BACKGROUND: Although sleep loss has been implicated in risk-taking behavior, it is unclear how individuals' current propensity to fall asleep, known as sleepiness, influences risk-taking. Because sleepiness is not only driven by recent sleep but also by factors such as circadian rhythm and current stimulation, it may be an important contributor to risk-taking as it reflects the more immediate sleep-wake state. PARTICIPANTS: 130 participants were recruited from a large Midwestern U.S. university.

METHODS: Participants completed a short personality survey, reported their current sleepiness on the Stanford Sleepiness Scale, and then completed the Balloon Analog Risk Task, a computerized risk-taking measure in which participants earned real money for their performance.

RESULTS: There was little support for a linear relation between sleepiness and risk-taking, but the evidence indicated a robust curvilinear relation. Even after controlling for important individual differences in sleep and risk-taking, participants who were moderately sleepy took longer to complete the risk-taking task, pumped balloons more, and exploded more balloons than those who were either low or high on sleepiness.

CONCLUSIONS: The curvilinear relation between sleepiness and risk-taking sheds light on inconsistencies in prior findings linking sleepiness and sleep loss to risk-taking behavior. Moreover, current sleepiness appears to have unique implications for risk-taking.

Language: en

Keywords

Impulsivity; risk-taking; sensation seeking; sleep; sleepiness