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Article Dans Une Revue Journal of Clinical Medicine Année : 2022

Atypical Response to Affective Touch in Children with Autism: Multi-Parametric Exploration of the Autonomic System

Maria Rosa Bufo
Marco Guidotti
  • Fonction : Auteur
Joëlle Malvy
Claire Wardak

Résumé

This study aimed at evaluating the autonomic response to pleasant affective touch in children with Autism Spectrum Disorders (ASD) and age-matched typically developing (TD) peers, thanks to multiple autonomic nervous system (ANS) parameters and by contrasting CT (C-tactile fibers) high- vs. low-density territory stimulations. We measured pupil diameter, skin conductance, and heart rate during gentle stroking of two skin territories (CT high- and low-density, respectively, forearm and palm of the hand) in thirty 6–12-year-old TD children and twenty ASD children. TD children showed an increase in pupil diameter and skin conductance associated with a heart rate deceleration in response to tactile stimulations at the two locations. Only the pupil was influenced by the stimulated location, with a later dilation peak following CT low-density territory stimulation. Globally, ASD children exhibited reduced autonomic responses, as well as different ANS baseline values compared to TD children. These atypical ANS responses to pleasant touch in ASD children were not specific to CT-fiber stimulation. Overall, these results point towards both basal autonomic dysregulation and lower tactile autonomic evoked responses in ASD, possibly reflecting lower arousal and related to social disengagement.

Dates et versions

hal-03971811 , version 1 (03-02-2023)

Identifiants

Citer

Maria Rosa Bufo, Marco Guidotti, Yassine Mofid, Joëlle Malvy, Frédérique Bonnet-Brilhault, et al.. Atypical Response to Affective Touch in Children with Autism: Multi-Parametric Exploration of the Autonomic System. Journal of Clinical Medicine, 2022, 11 (23), pp.7146. ⟨10.3390/jcm11237146⟩. ⟨hal-03971811⟩

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