Journal of Autism and Developmental Disorders

, Volume 38, Issue 1, pp 127–137

Tactile Perception in Adults with Autism: a Multidimensional Psychophysical Study

  • Carissa Cascio
  • Francis McGlone
  • Stephen Folger
  • Vinay Tannan
  • Grace Baranek
  • Kevin A. Pelphrey
  • Gregory Essick
Article

DOI: 10.1007/s10803-007-0370-8

Cite this article as:
Cascio, C., McGlone, F., Folger, S. et al. J Autism Dev Disord (2008) 38: 127. doi:10.1007/s10803-007-0370-8

Abstract

Although sensory problems, including unusual tactile sensitivity, are heavily associated with autism, there is a dearth of rigorous psychophysical research. We compared tactile sensation in adults with autism to controls on the palm and forearm, the latter innervated by low-threshold unmyelinated afferents subserving a social/affiliative submodality of somatosensation. At both sites, the groups displayed similar thresholds for detecting light touch and innocuous sensations of warmth and cool, and provided similar hedonic ratings of the pleasantness of textures. In contrast, increased sensitivity to vibration was seen in the autism group on the forearm, along with increased sensitivity to thermal pain at both sites. These findings suggest normal perception along with certain areas of enhanced perception in autism, consistent with previous studies.

Keywords

AutismSensoryTactilePsychophysicsCT afferents

Copyright information

© Springer Science+Business Media, LLC 2007

Authors and Affiliations

  • Carissa Cascio
    • 1
    • 6
  • Francis McGlone
    • 3
  • Stephen Folger
    • 2
    • 5
  • Vinay Tannan
    • 2
  • Grace Baranek
    • 1
  • Kevin A. Pelphrey
    • 4
  • Gregory Essick
    • 2
  1. 1.Center for Neurodevelopmental Disorders ResearchUniversity of North CarolinaChapel HillUSA
  2. 2.Center for Neurosensory DisordersUniversity of North CarolinaChapel HillUSA
  3. 3.Department of Neurological SciencesUniversity of LiverpoolLiverpoolEngland
  4. 4.Department of Psychology and NeuroscienceDuke UniversityDurhamUSA
  5. 5.Department of Physical Therapy EducationElon UniversityElonUSA
  6. 6.Department of Psychiatry, Duke-UNC Brain Imaging and Analysis CenterUniversity of North CarolinaDurhamUSA