Abstract
SUMMARY The capacity to solve a problem in a context of the social transmission of information was studied in two inbred strains of mice, C57BL/6NCr1BR and DBA/2NCr1BR. The problem consisted in opening the rotating door of a suspended cylinder. A comparison was made between individuals who had had experience of the device, reared by a mother who opened it every day, and controls. The experiment was conducted under two conditions: in condition 1 pups had experience of the device when they were very young and immature, in condition 2 pups had experience of the device when they were more mature. All animals, both experienced and naive, were tested with the apparatus on 3 consecutive days. Data show that whereas in condition 1 DBAs were better learners than C57s, in condition 2 the C57s turned out to be better performers. The results are discussed on the basis of the different levels of maturity of the two strains at birth and of their different exploratory tendencies.
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