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Int J Adolesc Med Health. 2018 Jan 13. pii: /j/ijamh.ahead-of-print/ijamh-2017-0123/ijamh-2017-0123.xml. doi: 10.1515/ijamh-2017-0123. [Epub ahead of print]

Blunted cortisol reactivity and risky driving in young offenders - a pilot study.

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Institut universitaire Jeunes en difficulté, 1001 Maisonneuve Blvd. east, 7th floor, Montreal, Quebec, Canada, Phone: +1 514 896 3485, Fax: +1 514 896 3400.
Université de Sherbrooke, Faculty of Medicine and Health Sciences, Longueuil, Quebec, Canada.
Douglas Hospital Research Centre, Addiction Research Program, Montreal, Quebec, Canada.
Université de Sherbrooke, Department of Psychoeducation, Sherbrooke, Quebec, Canada.
Université de Montréal, School of Psychoeducation, Montreal, Quebec, Canada.


Adolescent risky driving is a significant burden on public health. Young offenders (i.e. under custody and supervision of the criminal justice system) may be particularly vulnerable, but research is scant. Previous work indicated that blunted cortisol reactivity to stress is a marker of risk-taking predisposition, including risky driving. In this study, we hypothesized that young offenders display higher levels of risky driving than a non-offender comparison group, and that cortisol reactivity contributes to the variance in risky driving independent of other associated characteristics (i.e. impulsivity, risk taking, alcohol and drug use). We found that young offenders (n = 20) showed riskier driving in simulation than comparison group (n = 9), and blunted cortisol reactivity was significantly associated with risky driving. The results suggest young offenders are prone to risky driving, and that individual differences in the cortisol stress response may be an explanatory factor.


cortisol; risky driving; young offenders


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