Journal
JOURNAL OF AUTISM AND DEVELOPMENTAL DISORDERS
Volume 53, Issue 1, Pages 378-389Publisher
SPRINGER/PLENUM PUBLISHERS
DOI: 10.1007/s10803-022-05442-0
Keywords
Psychophysics; Tactile; Temporal order judgment; Bayesian estimation; Autistic traits; Autism spectrum disorder
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This study investigated the relationship between Bayesian calibration and autistic traits, and found that Bayesian calibration was weakened in participants with high autistic traits. Two participants with autism spectrum disorder showed irregularly large aftereffects.
Previous psychophysical studies reported a positive aftereffect in tactile temporal order judgments, which can be explained by the Bayesian estimation model ('Bayesian calibration'). We investigated the relationship between Bayesian calibration and autistic traits in participants with typical development (TD) and autism spectrum disorder (ASD). Bayesian calibration was weakened in TD participants with high autistic traits, consistent with the 'hypo-priors' hypothesis for autistic perceptions. The results from the ASD group were generally observed as a continuation of those from the TD groups. Meanwhile, two ASD participants showed irregularly large positive or negative aftereffects. We discussed the mechanisms behind the general results among TD and ASD participants and two particular results among ASD participants based on the Bayesian estimation model.
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