[The effect of social factors on the process of learning complex forms of behavior in adolescent chimpanzees]

Learning behaviour in chimpanzee has been investigated on a group of three animals at the age of 5-6 years. Situation conditioned reflex was elaborated in unrestrained monkeys which were trained to visual discrimination between abstract images of various complexity. Changes in experimental situation significantly affected learning process. It was shown that social contacts with experimenter are important for the effective learning in juvenile chimpanzee.