title: Chlordiazepoxide impairs the performance of a learned discrimination.
abstract: Chlordiazepoxide (CDP) (5 mg/kg) administered on four of eight sessions significantly impaired the performance of a previously learned, reinforcement-cued discrimination in male Sprague-Dawley rats. On four interspersed vehicle-injection sessions, the performance of subjects demonstrated immediate recovery and was indistinguishable from that of controls (0 mg/kg). An analysis of response components indicated that the impairment in discrimination performance was due to a "disinhibitory" effect of the drug on responding during "no-go" phases of the task. The results are discussed in the context of similarities and differences in the effect of CDP on performance and acquisition.
mesh_terms: D000818:Animals; D002707:Chlordiazepoxide / Q000494:pharmacology*; D003864:Depression, Chemical; D004193:Discrimination Learning / Q000187:drug effects*; D008297:Male; D051381:Rats
chemical_list: D002707:Chlordiazepoxide