[The role of the monoaminergic component in realizing the effect of sydnocarb on the differentiation of visual stimuli].

In the experiments on cats by the method of conditioned defensive reflexes there was studied the effect of a psychostimulant sydnocarb on differentiation of short-term and long-term visual stimuli, latencies of the responses to differentiated and single visual stimuli, the number of interstimulus responses, the time of taking a decision. The serotoninergic, dopaminergic and adrenergic substances were used to analyse the influences on the mediator systems. Syndocarb action was found to be mediated by the noradrenergic and serotoninergic systems.