[Effect of the type of reinforcement on conditioned reflex activity in male and female white rats].

On 24 males and 26 females of white rats of a mixed line, a study was carried out of the speed of formation and consolidation of instrumental drinking and defensive conditioned reflexes, elaboration of differentiation, changes in conditioned activity by the use of stochastic stereotype and by changing the meanings of the conditioned signals to opposite. Conditioned reflexes were elaborated more rapidly in female rats at drinking reinforcement and in male rats--at the defensive one. Differentiations were elaborated more rapidly and were better expressed in females than in males at both types of reinforcement.