[The characteristics of training 1.5- to 4.5-month-old puppies to spatial-temporal alternation]. / Osobennosti obucheniia 1.5--4.5-mesiachnykh shchenkov prostranstvenno-vremennomu cheredovaniiu.

The dynamics of formation and realization of alternation between six feeding troughs at meat refreshment at different time of a day has been studied on four groups of puppies and adult dogs. Essential age differences in time of formation and realization of perfect alternation as well as the number of refusals from fulfillment of conditioned reflex programme were revealed. The results obtained suggest the necessity to take into account different manifestations of interactions of the organism with environment at periodization of the development of higher nervous activity.

[The effect of brain "reward areas" on the electrical activity of the trigeminal nerve motor root in the ontogeny of the dog]. / Vliianie mozgovykh "zon nagrady" na élektricheskuiu aktivnost' dvigatel'nogo koreshka troinichnogo nerva v ontogeneze sobaki.

A short-term rhythmical stimulation of the 'rewarding areas' led to 10-15% increment of the tongue nerve potential amplitude in the motor root of trigeminal nerve in 18-30-day old, 2.5-5.0-month old and in adult dogs. Functional heterogeneity was revealed in the effects of different areas on the potential amplitude, the effects having certain ontogenetic specifics.