Examining the impact of cue similarity and fear learning on perceptual tuning.

Autor: Zaman J; Centre for the Psychology of Learning and Experimental Psychopathology, KU Leuven, Tiensestraat 102, Box 3726, 3000, Leuven, Belgium. jonas.zaman@kuleuven.be.; School of Social Sciences, University of Hasselt, Hasselt, Belgium. jonas.zaman@kuleuven.be., Yu K; Quantitative Psychology and Individual Differences, Faculty of Psychology and Educational Sciences, KU Leuven, Tiensestraat 102, Box 3726, 3000, Leuven, Belgium., Andreatta M; Department of Psychology, Education and Child Studies, Erasmus University Rotterdam, Post Box 1738, 3000 DR, Rotterdam, The Netherlands., Wieser MJ; Department of Psychology, Education and Child Studies, Erasmus University Rotterdam, Post Box 1738, 3000 DR, Rotterdam, The Netherlands., Stegmann Y; Department of Psychology (Experimental Clinical Psychology), University of Würzburg, 97070, Würzburg, Germany.
Jazyk: angličtina
Zdroj: Scientific reports [Sci Rep] 2023 Aug 10; Vol. 13 (1), pp. 13009. Date of Electronic Publication: 2023 Aug 10.
DOI: 10.1038/s41598-023-40166-w
Abstrakt: Past research on the effects of associative aversive learning on discrimination acuity has shown mixed results, including increases, decreases, and no changes in discrimination ability. An animal study found that the type of learning experience determined the direction and extent of learning-induced changes. The current preregistered web-based study aimed to translate these findings to humans. Experiment 1 (N = 245) compared changes in stimulus discrimination between simple learning (only one oriented grating cue), coarse differential conditioning (physically distinct cues), and fine differential conditioning (physically similar cues) as well as to their three respective control groups. The discrimination task consisted of a two-alternative-forced-choice task with oriented grating stimuli. During learning, a specific orientation was paired with unpleasant pictures. Our analysis using generative modeling demonstrated weak to moderate evidence that aversive learning did not alter discrimination acuity in any of the groups. In a follow-up experiment (N = 121), we replicated these findings despite successful learning trajectories in all three groups and a more detailed assessment of discrimination acuity. Contrary to prior assumptions, our findings indicate that aversive learning does not enhance perceptual discrimination, and the presence of additional safety cues does not appear to moderate this effect.
(© 2023. The Author(s).)
Databáze: MEDLINE
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