[Age characteristics of the strength of conditioned inhibition in dogs during food and defensive reinforcement].

Dynamics of internal inhibition intensity was studied in case of alimentary and defensive reinforcements in 1-2-months, 3-4-months and one-year-old puppies. In half of the animals the intensity of inhibition was estimated 2-5 times before they reached 4 years of age. The animals younger than one year of age showed weak, medium and strong inhibition with both types of reinforcement. The majority of animals showed different typological characteristics in experiments with alimentary and defensive reinforcements. In alimentary system the inhibition intensity after initial enhancement stabilizes or decreases. In defensive system, up to 3-4 years of age all experimental animals showed weak inhibition. The differences between alimentary and defensive systems become more pronounced with age.