Cited by 97Autism Spectrum Disorder ResearchTactile and Sensory InteractionsGenetics and Neurodevelopmental Disorders

Tactile sensitivity of normal and autistic children

Güçlü, Burak, Tanidir, Canan, Mukaddes, Nahit Motavalli, Ünal, Fatih·2007·Somatosensory & Motor Research

Abstract

Many children with autistic spectrum disorders have unusual reactions to certain sensory stimuli. These reactions vary along a hyper- to hypo-responsivity continuum. For example, some children overreact to weak sensory input, but others do not respond negatively to even strong stimuli. It is typically assumed that this deviant responsivity is linked to sensitivity, although the particular stage of sensory processing affected is not known. Psychophysical vibrotactile thresholds of six male children (age: 8-12) who were diagnosed to have autistic spectrum disorders and six normal male children (age: 7-11) were measured by using a two-alternative forced-choice task. The tactile stimuli were sinusoidal displacements and they were applied on the terminal phalanx of the left middle finger of each subject. By using a forward-masking paradigm, 40- and 250-Hz thresholds of the Pacinian tactile channel and 40-Hz threshold of the Non-Pacinian I tactile channel were determined. There was no significant difference between the thresholds of autistic and normal children, and the autistic children had the same detection and masking mechanisms as the normal children. The sensory responsivity of each subject was tested by clinical questionnaires, which showed again no difference between the two subject groups. Furthermore, no significant correlations could be found between the questionnaire data and the psychophysical thresholds. However, there was a high correlation between the data from the tactile and emotional subsets of the questionnaires. These results support the hypothesis that the hyper- and hypo-responsivity to touch, which is sometimes observed in autistic spectrum disorders, is not a perceptual sensory problem, but may probably be emotional in origin.

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Crossref · 10.1080/08990220601179418

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Authors
Güçlü, B., Tanidir, C., Mukaddes, N. M., & Ünal, F.
Affiliations
  • Boğaziçi University (TR)
  • Hacettepe University (TR)
Corresponding author
Güçlü, Burak
Venue
Somatosensory & Motor Research
Published
2007-01
Volume
24
Issue
1-2
Pages
21-33
ISSN
  • 0899-0220 (ISSN-L)
  • 1369-1651
OpenAlex
W2089459101
Cited by
97
References
54
Citations by year
2026: 3 · 2025: 3 · 2024: 5 · 2023: 5 · 2022: 5 · 2021: 13 · 2020: 6 · 2019: 10 · 2018: 2 · 2017: 9 · 2016: 5 · 2015: 10 · 2014: 5 · 2013: 4 · 2012: 3
FWCI
1.14
Type
journal article
Language
en
Open access
closed
Locations
  • Somatosensory & Motor Research (publishedVersion)
  • PubMed (publishedVersion)
Topics
  • Life Sciences › Neuroscience › Cognitive Neuroscience › Autism Spectrum Disorder Research
  • Life Sciences › Neuroscience › Cognitive Neuroscience › Tactile and Sensory Interactions
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Genetics › Genetics and Neurodevelopmental Disorders
Keywords
autism spectrum disorder, tactile sensitivity, vibrotactile thresholds, forward masking, emotional sensitivity, sensory processing
MeSH terms
Autistic Disorder, Child, Female, Humans, Male, Sensory Thresholds, Touch, Vibration, Somatosensory Disorders

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