Could Sensory Differences Be a Sex-Indifferent Biomarker of Autism? Early Investigation Comparing Tactile Sensitivity Between Autistic Males and Females

Magdalini Asaridou, Ericka L. Wodka, Richard A.E. Edden, Stewart H. Mostofsky, Nicolaas A.J. Puts, Jason L. He

Research output: Contribution to journalArticlepeer-review

Abstract

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.

Original languageEnglish (US)
Pages (from-to)239-255
Number of pages17
JournalJournal of Autism and Developmental Disorders
Volume54
Issue number1
DOIs
StatePublished - Jan 2024

Keywords

  • Autism
  • Psychophysics
  • Sensory
  • Sex-differences
  • Tactile

ASJC Scopus subject areas

  • Developmental and Educational Psychology

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