[Comparison of the effect of sidnocarb and other psychostimulants on discrimination and prediction processes in performing conditioned food-procuring reflexes].
In an Y-shaped maze a differentiation of the positive and negative reflex signals given at random in a ratio of 50 to 50 per cent and an active selection of one of two feeding troughs, reinforced at varying frequency (0.1--0.9), were determined. Sydnocarb (10--20 mg/kg) had no influence on the realization of the food-procurement response, but improved the discrimination of the signals. Only small doses of amphetamine (0.5 mg/kg), caffein (20 mg/kg) and acephen (10 mg/kg) also improved the response to conditioned signals. Sydnocarb reduced the number of runs to a rarely reinforced feeding trough and, at the same time, stimulated an active choice of the latter. Amphetamine largely facilitated an active choice of the runs direction. Caffein displayed a tendency to reduce the number of wrong approaches. Acephen hampered an active choice of compartments in the Y-maze without impairing the ability to distinguish the frequency of the feeding troughs reinforcement.
D000161:Acoustic Stimulation; D000661:Amphetamine / Q000494:pharmacology; D000818:Animals; D002110:Caffeine / Q000494:pharmacology; D003214:Conditioning, Classical / Q000187:drug effects*; D004192:Discrimination, Psychological / Q000187:drug effects*; D005247:Feeding Behavior / Q000187:drug effects*; D002504:Meclofenoxate / Q000494:pharmacology; D010069:Oxadiazoles / Q000494:pharmacology*; D010775:Photic Stimulation; D011337:Probability Learning; D011619:Psychotropic Drugs / Q000494:pharmacology*; D051381:Rats; D012054:Reinforcement, Psychology; D013558:Sydnones / Q000494:pharmacology*
D010069:Oxadiazoles; D011619:Psychotropic Drugs; D013558:Sydnones; D002110:Caffeine; D002504:Meclofenoxate; D000661:Amphetamine; C009257:sidnocarb
Sravnenie vliianiia sidnokarba i drugikh psikhostimuliatorov na protsessy razlic eniia i prognoziorvaniia pri vypolnenii uslovnykh pishchedobyva-tel'nykh refleksov.