Dissociable Effects of Cocaine Dependence on Reward Processes: The Role of Acute Cocaine and Craving

Emma Jane Rose, Betty Jo Salmeron, Thomas J. Ross, James Waltz, Julie B Schweitzer, Elliot A. Stein

Research output: Contribution to journalArticle

4 Citations (Scopus)

Abstract

The relative impact of chronic vs acute cocaine on dependence-related variability in reward processing in cocaine-dependent individuals (CD) is not well understood, despite the relevance of such effects to long-Term outcomes. To dissociate these effects, CD (N=15) and healthy controls (HC; N=15) underwent MRI two times while performing a monetary incentive delay task. Both scans were identical across subjects/groups, except that, in a single-blind, counterbalanced design, CD received intravenous cocaine (30 mg/70 kg) before one session (CD+cocaine) and saline in another (CD+saline). Imaging analyses focused on activity related to anticipatory valence (gain/loss), anticipatory magnitude (small/medium/large), and reinforcing outcomes (successful/unsuccessful). Drug condition (cocaine vs saline) and group (HC vs CD+cocaine or CD+saline) did not influence valence-related activity. However, compared with HC, magnitude-related activity for gains was reduced in CD in the left cingulate gyrus post-cocaine and in the left putamen in the abstinence/saline condition. In contrast, magnitude-dependent activity for losses increased in CD vs HC in the right inferior parietal lobe post-cocaine and in the left superior frontal gyrus post-saline. Across outcomes (ie, successful and unsuccessful) activity in the right habenula decreased in CD in the abstinence/saline condition vs acute cocaine and HC. Cocaine-dependent variability in outcome-and loss-magnitude activity correlated negatively with ratings of cocaine craving and positively with how high subjects felt during the scanning session. Collectively, these data suggest dissociable effects of acute cocaine on non-drug reward processes, with cocaine consumption partially ameliorating dependence-related insensitivity to reinforcing outcomes/'liking', but having no discernible effect on dependence-related alterations in incentive salience/'wanting'. The relationship of drug-related affective sequelae to non-drug reward processing suggests that CD experience a general alteration of reward function and may be motivated to continue using cocaine for reasons beyond desired drug-related effects. This may have implications for individual differences in treatment efficacy for approaches that rely on reinforcement strategies (eg, contingency management) and for the long-Term success of treatment.

Original languageEnglish (US)
Pages (from-to)736-747
Number of pages12
JournalNeuropsychopharmacology
Volume42
Issue number3
DOIs
StatePublished - Feb 1 2017

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Cocaine-Related Disorders
Reward
Cocaine
Craving
Motivation
Pharmaceutical Preparations

ASJC Scopus subject areas

  • Pharmacology
  • Psychiatry and Mental health

Cite this

Dissociable Effects of Cocaine Dependence on Reward Processes : The Role of Acute Cocaine and Craving. / Rose, Emma Jane; Salmeron, Betty Jo; Ross, Thomas J.; Waltz, James; Schweitzer, Julie B; Stein, Elliot A.

In: Neuropsychopharmacology, Vol. 42, No. 3, 01.02.2017, p. 736-747.

Research output: Contribution to journalArticle

Rose, Emma Jane ; Salmeron, Betty Jo ; Ross, Thomas J. ; Waltz, James ; Schweitzer, Julie B ; Stein, Elliot A. / Dissociable Effects of Cocaine Dependence on Reward Processes : The Role of Acute Cocaine and Craving. In: Neuropsychopharmacology. 2017 ; Vol. 42, No. 3. pp. 736-747.
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