Abstract
Summary: Selective memory in an operant conditioning situation with white rats. 48 Wistar rats were submitted to a continuous reinforcement schedule in a Skinner box. During acquisition or re-acquisition, rats reached the same learning criterion fixed at 10 rounds trips between the lever and the food dish with manipulation of the bar. The re-acquisition phase occurred 15 days after the acquisition phase. The number of experimental sessions during acquisition or re-acquisition varied according to the animals. We analysed precisely the behaviour of rats with a descriptive grid of 34 different behavioural patterns grouped in 4 categories based on the location of the behaviour in the apparatus. The rats' behaviour was continuously video-taped. We show that the rats used a selective memory according to the location in the Skinner box and the nature of the behaviour. Key words : operant conditioning, selective memory, rat.
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