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While dopamine signaling in the nucleus accumbens (NAc) plays a well-established role in motivating cocaine use in early nonaddicted stages, recent evidence suggests that other signaling pathways may be critical once addiction has developed. Given the importance of glutamatergic signaling in the NAc for drug seeking and relapse, here we examined its role in motivating cocaine self-administration under...
Although considerable evidence implicates dopamine D1-receptor signaling in the nucleus accumbens in motivation for cocaine during early stages of addiction, less is known with regard to its role after the development of addiction. Here, we examined its role in the development of an addicted phenotype in intact male and female rats, and in female rats that were either resistant or vulnerable to developing...
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