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Psicologia: Reflexão e Crítica

Print version ISSN 0102-7972On-line version ISSN 1678-7153

Abstract

HAYDU, Verônica Bender et al. Stimulus Equivalence and Jealousy: Effect of Pre-Experimental History. Psicol. Reflex. Crit. [online]. 2015, vol.28, n.3, pp.490-499. ISSN 0102-7972.  http://dx.doi.org/10.1590/1678-7153.201528308.

The formation of stimulus equivalence classes has been used as an experimental model to investigate a series of behavioral phenomena, such as the development of symbolic behavior and transfer of functions that environmental events acquire through conditional relations. The aim of this study was to analyze the effect of stimuli with high pre-experimentally constituted affective grade in the formation of equivalence classes established in an experimental context, when the emergent relations can be characterized by a conflict in choosing stimuli. Participants were 17 college students exposed to matching to sample procedure and the tests of emergent relations to form four equivalence classes with four stimuli each. The results showed that 10 out of 17 participants formed equivalence classes, and positive correlation was observed between the performance on the Equivalence Test and the score on the Romantic Jealousy Scale, suggesting that the pre-experimental history related to emotional involvement interfered with participants' performance. The interference effect is probably due to the conflict between contingencies: one that controls responses to pre-experimentally established conditional relations involving stimuli with high emotional value, and another one, established in the experimental setting.

Keywords : Equivalence classes; transfer of function; romantic jealousy; matching to sample.

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