Journal
JOURNAL OF AUTISM AND DEVELOPMENTAL DISORDERS
Volume -, Issue -, Pages -Publisher
SPRINGER/PLENUM PUBLISHERS
DOI: 10.1007/s10803-022-05787-6
Keywords
Autism; Sensory; Tactile; Sex-differences; Psychophysics
Categories
Funding
- NIH/NIMH [R21MH098228, R01MH106564, R01MH078160, R00MH107719]
- IDDRC [P50 HD103538]
- Organization for Autism Research
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Sensory differences are highly prevalent in autistic individuals. However, few studies have compared their presentation between autistic males and autistic females. Results from this study suggest that while there are sex-differences in tactile perceptual sensitivity, these differences are not specific to autism. Elevated tactile sensitivity measures in autism are comparable between autistic males and females, indicating the potential for using certain sensory features as sex-indifferent markers of autism.
Sensory differences are highly prevalent in autistic individuals. However, few studies have compared their presentation between autistic males and autistic females. We used psychophysics to assess and compare tactile perceptual sensitivity between autistic and non-autistic boys and girls aged between 8 and 12 years of age. While there were sex-differences of amplitude discrimination, frequency discrimination and order judgement thresholds, these sex-differences were not autism-specific. Mean RTs and detection thresholds were elevated in autism but were comparable between the sexes. Tactile sensitivity measures that are elevated in autism but are otherwise comparable between autistic males and autistic females suggest the possibility that certain sensory features could be used as sex-indifferent markers of autism. Further investigation with larger and more representative samples should be conducted before any stronger conclusions are made.
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