Traits linked to executive and reward systems functioning in clients undergoing residential treatment for substance dependence

Michael Lyvers, Rachel Hinton, Stephanie Gotsis, Michelle Roddy, Mark S. Edwards, Fred Arne Thorberg

Research output: Contribution to journalArticleResearchpeer-review

13 Citations (Scopus)

Abstract

Traits presumed to reflect dopaminergic reward and prefrontal executive systems functioning were assessed in 100 clients undergoing residential treatment for substance dependence and a community sample of 107 social drinkers. All participants completed self-report measures of impulsivity, alexithymia, frontal systems dysfunction, sensitivity to rewards and punishments, dispositional mindfulness, alcohol use, illicit drug use, mood and demographic characteristics. The percentage of in-patients meeting the criterion for alexithymia was more than twice as high as in the community sample (p< .0001). Multivariate analysis of covariance controlling for age, education, head injury and gender revealed significant differences (p < .0001) between clinical and community samples such that clients scored higher on negative moods, frontal systems dysfunction, reward sensitivity, punishment sensitivity and impulsivity, and lower on dispositional mindfulness. Time in treatment was correlated only with negative mood, supporting the stability of the trait measures; controlling for negative mood eliminated group differences on punishment sensitivity and mindfulness only. Results are consistent with the notion that addiction is linked to reward sensitivity and frontal lobe deficits, with associated implications.

Original languageEnglish
Pages (from-to)194-199
Number of pages6
JournalPersonality and Individual Differences
Volume70
DOIs
Publication statusPublished - 2014

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Residential Treatment
Mindfulness
Reward
Substance-Related Disorders
Punishment
Affective Symptoms
Impulsive Behavior
Street Drugs
Frontal Lobe
Craniocerebral Trauma
Self Report
Multivariate Analysis
Alcohols
Demography
Education

Cite this

Lyvers, Michael ; Hinton, Rachel ; Gotsis, Stephanie ; Roddy, Michelle ; Edwards, Mark S. ; Thorberg, Fred Arne. / Traits linked to executive and reward systems functioning in clients undergoing residential treatment for substance dependence. In: Personality and Individual Differences. 2014 ; Vol. 70. pp. 194-199.
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Traits linked to executive and reward systems functioning in clients undergoing residential treatment for substance dependence. / Lyvers, Michael; Hinton, Rachel; Gotsis, Stephanie; Roddy, Michelle; Edwards, Mark S.; Thorberg, Fred Arne.

In: Personality and Individual Differences, Vol. 70, 2014, p. 194-199.

Research output: Contribution to journalArticleResearchpeer-review

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