Dependent heroin use and associated risky behaviour: the role of rash impulsiveness and reward sensitivity

Dissabandara, Lakal O., Loxton, Natalie J., Dias, Shavindra R., Dodd, Peter R., Daglish, Mark and Stadlin, Alfreda (2014) Dependent heroin use and associated risky behaviour: the role of rash impulsiveness and reward sensitivity. Addictive Behaviors, 39 1: 71-76. doi:10.1016/j.addbeh.2013.06.009


Author Dissabandara, Lakal O.
Loxton, Natalie J.
Dias, Shavindra R.
Dodd, Peter R.
Daglish, Mark
Stadlin, Alfreda
Title Dependent heroin use and associated risky behaviour: the role of rash impulsiveness and reward sensitivity
Journal name Addictive Behaviors   Check publisher's open access policy
ISSN 0306-4603
1873-6327
Publication date 2014-01-01
Year available 2013
Sub-type Article (original research)
DOI 10.1016/j.addbeh.2013.06.009
Open Access Status Not Open Access
Volume 39
Issue 1
Start page 71
End page 76
Total pages 6
Place of publication Kidlington, Oxford, United Kingdom
Publisher Pergamon
Language eng
Subject 2738 Psychiatry and Mental health
3203 Clinical Psychology
3005 Toxicology
2701 Medicine (miscellaneous)
Abstract Impulsive temperament has long been considered as a risk factor for substance use disorders (SUD). Considering the heterogeneity of impulsivity, a biologically-based 2-factor model incorporating reward sensitivity and rash impulsiveness facets, has been proposed. Here we report how these two facets of impulsiveness could be associated with different aspects of dependent heroin use and associated risky behaviour. Two hundred and ninety three dependent heroin users and 232 non-users were assessed on reward sensitivity, rash impulsivity, and the related trait of punishment sensitivity. After adjusting for multiple comparisons, heroin users were found to be more rash-impulsive and reward-sensitive than non-users (p. <. 0.001). Within users, rash impulsivity was associated with high risk behaviour including escalating heroin consumption, injecting heroin use, hazardous drinking, low treatment-seeking and risky sexual behaviour. Reward sensitivity was uniquely associated with early onset of drug use. While greater impulsivity is a common trait in drug users compared with non-users, the use of a 2-factor model of impulsivity provides additional information regarding specific aspects of drug initiation and maintenance that can be targeted in the prevention and treatment of heroin dependence.n users were found to be more rash-impulsive and reward-sensitive than non-users (p. <. 0.001). Within users, rash impulsivity was associated with high risk behaviour including escalating heroin consumption, injecting heroin use, hazardous drinking, low treatment-seeking and risky sexual behaviour. Reward sensitivity was uniquely associated with early onset of drug use. While greater impulsivity is a common trait in drug users compared with non-users, the use of a 2-factor model of impulsivity provides additional information regarding specific aspects of drug initiation and maintenance that can be targeted in the prevention and treatment of heroin dependence.
Keyword Heroin dependence
Impulsivity
Personality
Reward
Q-Index Code C1
Q-Index Status Confirmed Code
Institutional Status UQ

 
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