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Temporal resolution relates to sensory hyperreactivity independently of stimulus detection sensitivity in individuals with autism spectrum disorder

Ayako Yaguchi, View ORCID ProfileTakeshi Atsumi, Reiko Fukatsu, Masakazu Ide
doi: https://doi.org/10.1101/2020.12.23.424156
Ayako Yaguchi
1Department of Rehabilitation for Brain Functions, Research Institute of National Rehabilitation Center for Persons with Disabilities, Tokorozawa, Saitama, Japan
2Japan Society for the Promotion of Science, Chiyoda-ku, Tokyo, Japan
3Department of Contemporary Psychology, Graduate School of Rikkyo University, Niiza, Saitama, Japan
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  • For correspondence: m.ide.personal@gmail.com
Takeshi Atsumi
1Department of Rehabilitation for Brain Functions, Research Institute of National Rehabilitation Center for Persons with Disabilities, Tokorozawa, Saitama, Japan
4Department of Medical Physiology, Faculty of Medicine, Kyorin University, Mitaka, Tokyo, Japan
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Reiko Fukatsu
1Department of Rehabilitation for Brain Functions, Research Institute of National Rehabilitation Center for Persons with Disabilities, Tokorozawa, Saitama, Japan
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Masakazu Ide
1Department of Rehabilitation for Brain Functions, Research Institute of National Rehabilitation Center for Persons with Disabilities, Tokorozawa, Saitama, Japan
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  • For correspondence: m.ide.personal@gmail.com
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Abstract

Background Researchers have been focused on perceptual characteristics of autism spectrum disorder (ASD) in terms of sensory hyperreactivity. Previously, we demonstrated that temporal resolution, which is the accuracy in differentiating the order of two successive vibrotactile stimuli, is associated with the severity of sensory hyperreactivity (Ide et al. 2019). Herein, we examined whether an increase in the perceptual intensity of a tactile stimulus, despite its short duration, is derived from high temporal resolution and a high frequency of sensory temporal summation.

Method Sixteen participants with ASD and fifteen typically developing (TD) participants performed two psychophysical experimental tasks, and we evaluated the detectable duration of vibrotactile stimuli with the same amplitude and temporal resolution. Sensory hyperreactivity was estimated using a self-reported questionnaire.

Results There was no relationship between temporal resolution and the duration of detectable stimuli in either group. However, the ASD group showed more severe sensory hyperreactivity in daily life than the TD group did, and ASD participants with severe sensory hyperreactivity tended to have high temporal resolution but not high sensitivity for detectable duration.

Conclusion Contrary to our hypothesis, there might be different processing between temporal resolution and sensitivity for stimulus detection. Sensory reactivity in daily life would not be based on sensitivity for stimulus detection measured in an experimental task, and we suggest that atypical temporal processing would affect sensory reactivity in ASD. Keywords (within 6 keywords): Temporal resolution, Temporal summation, Autism spectrum disorder, Hyperreactivity, Gap detection

Competing Interest Statement

The authors have declared no competing interest.

Copyright 
The copyright holder for this preprint is the author/funder, who has granted bioRxiv a license to display the preprint in perpetuity. All rights reserved. No reuse allowed without permission.
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Posted December 23, 2020.
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Temporal resolution relates to sensory hyperreactivity independently of stimulus detection sensitivity in individuals with autism spectrum disorder
Ayako Yaguchi, Takeshi Atsumi, Reiko Fukatsu, Masakazu Ide
bioRxiv 2020.12.23.424156; doi: https://doi.org/10.1101/2020.12.23.424156
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Temporal resolution relates to sensory hyperreactivity independently of stimulus detection sensitivity in individuals with autism spectrum disorder
Ayako Yaguchi, Takeshi Atsumi, Reiko Fukatsu, Masakazu Ide
bioRxiv 2020.12.23.424156; doi: https://doi.org/10.1101/2020.12.23.424156

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