Sleep and risk-related decision-making in adolescents

M. L. WONG, Esther Yuet Ying LAU, Y. W. E. LEE, P. HUNG

Research output: Contribution to conferencePoster


Objectives: While sleep has been found to be important for optimal decision-making ability, and adolescents around the world were noted to have insufficient sleep, we aimed to investigate how sleep influenced risk-related decision-making among adolescents.
Methods: Thirty-two healthy adolescents (age 17 to 18, 9 male) wore an actigraph-watch for 5 days before and 1 day after two sessions of cognitive assessment (including psychomotor vigilance and risky decision-making assessment), separated by either a polysomnography-monitored sleep opportunity (nap, n = 18) or wakefulness. The number and reaction time (RT) in risky and safe choices in the
decision-making task and RT in the psychomotor vigilance task (PVT) were the major outcome variables.
Results: The sample had an average of 6.95 h of TST, 11.96 minutes of SOL and 96.3% SE for the 5 nights before the testing sessions and the groups were comparable on measures of sleep, pre-condition risk-related decision-making and vigilance (ps>0.05). Yet, across sessions, while the nap-group had reduced RT in the PVT, the wake-group instead had increased RT, F(1,30)=6.306, P = 0.033. While the nap-group had increased RT when selecting risky decision in the decision-making task, the wake-group had decreased RT, F(1,30)=6.533, P = 0.018.
Conclusions: The data showed that adolescents become less vigilant but faster in making risky decisions throughout the day. Yet, such tendency was reversed by a daytime sleep opportunity. Given that adolescents faced decisions involving risks in various degrees, the importance of sleep should be emphasized in this age group.
Disclosure: Nothing to disclose.  Copyright © 2016 The Authors.
Original languageEnglish
Publication statusPublished - Sept 2016
Event23rd Congress of the European Sleep Research Society - Bologna, Italy
Duration: 13 Sept 201616 Sept 2016


Conference23rd Congress of the European Sleep Research Society
Internet address


Wong, M. L., Lau, E. Y. Y., Lee, Y. W. E., & Hung, P. (2016, September). Sleep and risk-related decision-making in adolescents. Poster presented at the 23rd Congress of the European Sleep Research Society, Bologna, Italy.


Dive into the research topics of 'Sleep and risk-related decision-making in adolescents'. Together they form a unique fingerprint.