کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
2013342 1541881 2008 8 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
The rate of intravenous cocaine or amphetamine delivery does not influence drug-taking and drug-seeking behavior in rats
موضوعات مرتبط
علوم زیستی و بیوفناوری بیوشیمی، ژنتیک و زیست شناسی مولکولی زیست شیمی
پیش نمایش صفحه اول مقاله
The rate of intravenous cocaine or amphetamine delivery does not influence drug-taking and drug-seeking behavior in rats
چکیده انگلیسی

We studied the influence of rate of intravenous infusion of cocaine or amphetamine on drug-taking and seeking behavior. First, drug-naive rats were tested for acquisition of self-administration of increasing doses of amphetamine or cocaine infused over 5 or 100 s. Second, self-administration of cocaine or amphetamine infused over 5–100 s was assessed on fixed or progressive-ratio (PR) reinforcement schedules. Finally, the ability of a single 5 or 100 s amphetamine or cocaine infusion to reinstate extinguished drug seeking was assessed. Although slower infusion rates produced a small effect on drug taking under continuous-reinforcement conditions, infusion rate did not alter drug taking on intermittent or PR reinforcement schedules, or the ability of cocaine or amphetamine to reinstate drug seeking. Taken together, our results suggest that variation in drug delivery rate over a range that we previously found alters the induction of behavioral sensitization, gene-expression and striatal dopamine activity, does not markedly alter drug-taking or seeking behavior.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Pharmacology Biochemistry and Behavior - Volume 90, Issue 4, October 2008, Pages 797–804
نویسندگان
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