Effects of expectations and sensory unreliability on voice detection - A preregistered study.

Autor: Szymanek P; Doctoral School in the Social Sciences, Jagiellonian University in Krakow, Poland; Mathematical Cognition and Learning Lab, Copernicus Center for Interdisciplinary Studies, Jagiellonian University in Krakow, Poland. Electronic address: piotr.szymanek@doctoral.uj.edu.pl., Homan M; Mathematical Cognition and Learning Lab, Copernicus Center for Interdisciplinary Studies, Jagiellonian University in Krakow, Poland., van Elk M; Institute of Psychology, Leiden University, Leiden, the Netherlands., Hohol M; Mathematical Cognition and Learning Lab, Copernicus Center for Interdisciplinary Studies, Jagiellonian University in Krakow, Poland.
Jazyk: angličtina
Zdroj: Consciousness and cognition [Conscious Cogn] 2024 Aug; Vol. 123, pp. 103718. Date of Electronic Publication: 2024 Jun 15.
DOI: 10.1016/j.concog.2024.103718
Abstrakt: The phenomenon of "hearing voices" can be found not only in psychotic disorders, but also in the general population, with individuals across cultures reporting auditory perceptions of supernatural beings. In our preregistered study, we investigated a possible mechanism of such experiences, grounded in the predictive processing model of agency detection. We predicted that in a signal detection task, expecting less or more voices than actually present would drive the response bias toward a more conservative and liberal response strategy, respectively. Moreover, we hypothesized that including sensory noise would enhance these expectancy effects. In line with our predictions, the findings show that detection of voices relies on expectations and that this effect is especially pronounced in the case of unreliable sensory data. As such, the study contributes to our understanding of the predictive processes in hearing and the building blocks of voice hearing experiences.
(Copyright © 2024 The Author(s). Published by Elsevier Inc. All rights reserved.)
Databáze: MEDLINE
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