Disrupted Resting-State Functional Connectivity in the Social Visual Pathway in Children With Autism Spectrum Disorder.
Right-side social-visual brain wires run thin in kids with autism, and the thinner they are, the tougher the social symptoms.
01Research in Context
What this study did
Li et al. (2025) scanned kids with and without autism while they rested.
They looked at how well the right-side social-visual pathway talked to itself.
The team then compared these brain-chat scores to each child’s social symptom checklist.
What they found
Kids with autism had weaker signals between two right-brain patches: pSTS and mSTS.
Lower signal strength matched worse social scores.
The finding points to a specific wiring gap, not a general brain slowdown.
How this fits with other research
Chien et al. (2015) saw the opposite: boys with autism had too much, not too little, right-TPJ wiring.
The two studies seem to clash, but they probed nearby yet different nodes—like checking two streets in the same neighborhood.
David et al. (2014) add that less right-TPJ gray matter predicts poor social-motion reading, so both structure and wiring matter.
Mamashli et al. (2021) also found weaker brain links when kids with autism viewed upside-down faces, showing the problem appears during real social input too.
Why it matters
You can’t rewire pSTS-mSTS with a token board, but you can stop blaming bad therapy when social gains lag.
Use this data to explain why some learners need extra visual social cues or peer models.
It also justifies pairing ABA with speech or OT that target joint attention—both fields are aiming at the same weak circuit.
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02At a glance
03Original abstract
The social visual pathway, which diverges from the dorsal pathway at the visual motion area (MT/V5) and runs from the posterior down to anterior portions of the superior temporal sulcus (STS), specializes in processing dynamic social information. This study examined resting-state functional connectivity within this pathway in children with autism spectrum disorder (ASD) and typically developing (TD) children. Using data from the Autism Brain Imaging Data Exchange (ABIDE) repository, we found significant hypoconnectivity between the posterior and middle STS (pSTS-mSTS) in the right hemisphere in children with ASD compared to those in TD children. Lower connectivity in this region of the pathway correlated with more severe social symptoms in ASD and higher indices of social communication vulnerabilities in the combined ASD and TD groups. These findings suggest that a specific disruption in the right hemisphere social visual pathway in children with ASD potentially contributes to their social difficulties.
Autism research : official journal of the International Society for Autism Research, 2025 · doi:10.1002/aur.70037