Related Experiment Video
Updated: Jun 10, 2026

Pavlovian Conditioned Approach Training in Rats
Published on: February 4, 2016
[Learning contingencies without explicit reinforcement]
Vicente J Pérez Fernández1, Andrés García García
1Facultad de Psicología, Universidad Nacional de Educación a Distancia, Madrid, Spain. vperez@psi.uned.es
Abstract:
The goal of this work was to determine whether participants improve their performance on a task of conditional discrimination in which feedback of their responses was not provided. 188 participants were evaluated in an equivalence-equivalence test, which was divided into four blocks of 9 trials. The results show that the participants who made between 5 and 12 mistakes presented an improvement between the first and fourth block of almost 20%, and in some cases, of until 44.44%. These results provide evidence of learning without explicit reinforcement. The possible contradiction with some studies centered on searching for facilitation procedures of the equivalence-equivalence response is discussed.
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