THE INDIVIDUAL FEATURES OF DOGS IN A FREE -CHOICE OF PROBABILITY AND VALUE OF FOOD REINFORCEMENT

The tactics of choice between two feeders after changing the probabili ty and quality of food reinforcement in one of them was studied in 4 f reely behaving dogs. The conditioned stimulus was not changed. It was shown that choice tactics differed between the dogs even under conditi ons of equal 100% probability of food reinforcement in both the feeder s. Decrease in probability of presentation of higher-quality food in o ne of the feeders increased the incidence of choice of this feeder onl y in one dog. This dog was characterized by a higher rate of the dynam ic stereotype conditioning in response to the number of presentations of cups with food in each feader. The dogs preferred the constant rein forcement when food in the two feeders was of the same quality but pre sented with different probability.