alexa Drug seeking becomes compulsive after prolonged cocaine self-administration.
Psychiatry

Psychiatry

Journal of Neuropsychopharmacology & Mental Health

Author(s): Vanderschuren LJ, Everitt BJ, Vanderschuren LJ, Everitt BJ

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Abstract Compulsive drug use in the face of adverse consequences is a hallmark feature of addiction, yet there is little preclinical evidence demonstrating the actual progression from casual to compulsive drug use. Presentation of an aversive conditioned stimulus suppressed drug seeking in rats with limited cocaine self-administration experience, but no longer did so after an extended cocaine-taking history. In contrast, after equivalent extended sucrose experience, sucrose seeking was still suppressed by an aversive conditioned stimulus. Persistent cocaine seeking in the presence of signals of environmental adversity after a prolonged cocaine-taking history was not due to impaired fear conditioning, nor to an increase in the incentive value of cocaine, and may reflect the establishment of compulsive behavior. This article was published in Science and referenced in Journal of Neuropsychopharmacology & Mental Health

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