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Abstract
A aquisição repetida de discriminações simples pode determinar uma crescente eficiência na aprendizagem dessas discriminações. Esse efeito é conhecido como learning-set. O mesmo efeito pode ser observado em reversões repetidas de uma mesma discriminação ou em reversões repetidas de discriminações simples combinadas (RRDSC). O presente estudo relata a aplicação de RRDSC com até seis estímulos (três positivos e três negativos), simultaneamente, com um macaco-prego (Cebus cf. apella). Ao longo das repetidas reversões, avaliou-se o efeito de learning-set em duas variáveis: a) número de acertos processados até o critério de seis acertos consecutivos e b) número de tentativas até o critério. Os dados indicam a obtenção de learning-set nas RRDSC. Discutem-se os procedimentos que mais contribuíram para essa demonstração.
Repeated acquisition of simple discrimination may determine an increasing efficiency in learning such discriminations. This effect is known as learning-set. The same effect can be observed on repeated reversals of the same discrimination or on repeated yoked reversals of simple discriminations (RYRSD). The present study reports the use of RYRSD with up to six stimuli (three positive and three negative) simultaneously with a capuchin monkey (Cebus cf apella). Over the course of the repeated reversals, the learning-set effect was evaluated taking into account two variables: a) number of correct responses processed until criterion of six consecutive correct responses is reached and b) number of trials until the criterion is reached. The data indicate learning-set in simple discrimination on yoked reversals. We discuss the procedures that contributed the most to this demonstration.
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