[The acquisition in dogs of temporal regulation by differentiated reinforcement of the response duration using an exteroceptive component and the pharmacological modulation of this reflex (diazepam, clozapine)].

Transformation of expectation phenomenon into the phenomenon of temporal regulation is usually achieved by the suppression of preliminary factors or by means of their physical modification. Our studies show that such transformation can be obtained in dogs using Kupalov paradigm with the presentation of additional stimuli. These stimuli strictly identical, from the physical point of view, to the signals which interrupt expectation are randomly introduced into the temporal limit.