Dynamic functional adaptations during touch observation in autism: connectivity strength is linked to attitudes towards social touch and social responsiveness.
Haemy Lee Masson
PMID 39966865WHAT IT FOUND
Autistic men showed stronger brain links between visual and touch areas when watching social touch.
This link was strongest in those who reported being more comfortable with physical affection and having fewer difficulties in social situations.
Key findings
01Autistic participants showed higher functional connectivity between early visual and somatosensory brain areas compared to non-autistic participants during both social and nonsocial touch observation.
02In the autistic group, stronger connectivity between visual motion and somatosensory areas during social touch observation was associated with more positive attitudes toward social touch.
03In the autistic group, stronger connectivity between visual and social brain areas during social touch observation was associated with better social responsiveness.
STILL TO COME
How it was doneWhat they found
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What it does not show
The sample included only male adults with average to above-average intelligence and minimal support needs, so findings may not apply to autistic women, children, or those with greater support needs. The study had a small sample size (N=42). The study is cross-sectional and re-analyzes existing data, so it cannot determine if the observed brain connectivity causes the behavioral traits or results from them. The videos depicted touch between non-autistic people, which may not reflect the touch experiences of autistic individuals.
Declared interests
The paper states it is a research support by non-U.S. government sources but does not list specific individual financial conflicts of interest or funding sources in the provided text.
The easy way to misread this
Do not interpret the increased brain connectivity as a deficit or a sign of poor social functioning. The study suggests this connectivity might be a compensatory mechanism, as it was linked to better social outcomes and more positive attitudes toward touch in the autistic group.