Expectation generation and its effect on subsequent pain and visual perception.

ABSTRACT: Bayesian accounts of perception, such as predictive processing, suggest that perceptions integrate expectations and sensory experience, and thus assimilate to expected values. Furthermore, more precise expectations should have stronger influences on perception. We tested these hypotheses in a paradigm that manipulates both the mean value and the precision of cues within-person. Forty-five participants observed cues-presented as ratings from 10 previous participants-with varying cue means, variances (precision), and skewness across trials. Participants reported expectations regarding the painfulness of thermal stimuli or the visual contrast of flickering checkerboards. Subsequently, similar cues were each followed by a visual or noxious thermal stimulus. While perceptions assimilated to exp

SUBMITTER: Botvinik-Nezer R 

PROVIDER: S-EPMC11482957 | biostudies-literature | 2024 Oct

REPOSITORIES: biostudies-literature