Atypical Tactile Perception in Early Childhood Autism.

J Autism Dev Disord

Department of Radiology, Cumming School of Medicine, University of Calgary Alberta Children's Hospital, Office B4-512 28 Oki Drive NW, T3B 6A8, Calgary, AB, Canada.

Published: July 2023

We assessed different aspects of tactile perception in young children (3-6 years) with autism. Autistic and neurotypical children completed vibrotactile tasks assessing reaction time, amplitude discrimination (sequential and simultaneous) and temporal discrimination (temporal order judgment and duration discrimination). Autistic children had elevated and more variable reaction times, suggesting slower perceptual-motor processing speed and/or greater distractibility. Children with autism also showed higher amplitude discrimination and temporal order judgement thresholds compared to neurotypical children. Tactile perceptual metrics did not associate with social or tactile sensitivities measured by parent-reports. Altered tactile behavioral responses appear in early childhood, can be quantified but appear dissociated from sensitivity. This implies these measures are complementary, but not necessarily related, phenomena of atypical tactile perception in autism.

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Source
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC10290582PMC
http://dx.doi.org/10.1007/s10803-022-05570-7DOI Listing

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