Open AccessA behavioral economic analysis of the effects of rimcazole on reinforcing effects of cocaine injection and food presentation in rats
Author(s) -
Martin O Job,
Jonathan L. Katz
Publication year - 2019
Publication title -
psychopharmacology/psychopharmacologia
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.378
H-Index - 196
eISSN - 1432-2072
pISSN - 0033-3158
DOI - 10.1007/s00213-019-05332-x
Subject(s) - reinforcement , antagonist , methylphenidate , self administration , psychology , medicine , endocrinology , pharmacology , receptor , psychiatry , social psychology , attention deficit hyperactivity disorder
Rimcazole, a σ-receptor antagonist with affinity for the dopamine transporter (DAT), decreases rates of cocaine self-administration at doses lower than those that affect food-reinforced responding. As response rates are multiply determined, behavioral-economic analyses were used to provide measures of the reinforcing effectiveness of cocaine and food after rimcazole treatment. Further, effects of combinations of the DAT inhibitor, methylphenidate, and σ-receptor antagonists (BD1008, BD1063) were compared to those of rimcazole to assess mechanism of rimcazole effects.