Abstract

URBAN, Florencia et al. Stimuli equivalence: competition between identity-reflexivity and trained conditional relations. Anu. investig. [online]. 2006, vol.13. ISSN 1851-1686.

In this study we investigate the equivalence between identity and not-identity (but trained) discriminative relations: Match-to-sample tasks with competitive comparison figures (identical to the sample and not-identical but previously reinforced if selected in a training phase) were performed. Two protocols of training and test of equivalence relations were done by healthy adult human subjects in which the number of success responses and reaction times were recorded. Besides, In the competition tests the proportions of figures selected by identity or training and the frequencies of subjects were considered according to the predominant pattern of answers. In a first experiment, when the competition trials appeared intermingled with the of identity-reflexivity test trials, preferences to identity responses were verified. In a second experiment, when the competition trials appeared in a separate block after the training phase, preference in the answer for the trained relations were verified in reaction times, but and responses by identity were in similar proportions to the responses by the trained relations. These results are discussed in the perspective of the "Competition of Verbal and Implicit Systems" (COVIS) model.

Keywords : Categories; Equivalence; Explicit learning; Implicit learning.

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