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Prolonged withdrawal following cocaine self-administration increases resistance to punishment in a cocaine binge.


ABSTRACT: Drug addiction is characterized by compulsive drug-taking behaviors and a high propensity to relapse following drug cessation. Drug craving and seeking can increase during a period of abstinence, but this phenomenon is not observed in drug-induced reinstatement models. To investigate the effect of withdrawal on cocaine relapse, rats were exposed to extended-access cocaine self-administration and subjected to either 1 or 30 d of withdrawal. When tested during 12 h unlimited access to cocaine (binge), the duration of the withdrawal did not influence cocaine intake. However, using a histamine punishment procedure that greatly suppresses drug-taking behavior, we demonstrate that longer periods of abstinence from cocaine induce a greater persistence in responding for drug in the face of negative consequences.

SUBMITTER: Gancarz-Kausch AM 

PROVIDER: S-EPMC4217113 | biostudies-other | 2014 Nov

REPOSITORIES: biostudies-other

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