Postural Control Deficits in Autism Spectrum Disorder: The Role of Sensory Integration.
Adults with ASD sway more when balance cues are off, confirming a lifelong sensory-integration issue.
01Research in Context
What this study did
The team asked adults with autism to stand still on a force plate. They blurred vision or tilted the floor to make balance cues unreliable.
They compared sway size to neurotypical adults. More sway means poorer sensory integration.
What they found
Adults with ASD wobbled more when cues were off. The extra sway shows their brain weighs unreliable inputs differently.
The deficit appeared across vision and body-sense conditions, not just one.
How this fits with other research
Lim et al. (2017) pooled 19 studies and saw the same pattern: large balance deficits in ASD under every sensory test. Doumas et al. (2016) is one data point inside that bigger picture.
LeBlanc et al. (2003) found the same sway increase in children thirteen years earlier. Together the papers show the problem starts young and persists into adulthood.
Ghanouni et al. (2017) extends the idea: faces, not objects, destabilize kids with ASD. Sensory reliability matters, but social content can tip the balance further.
Why it matters
When you ask clients with ASD to stand for a task, check the sensory load. Dim lights, moving surfaces, or face-to-face demands can all magnify sway. Build in hand rails, seated options, or brief stance times. Note balance issues in your FBA and add gross-motor goals if needed.
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02At a glance
03Original abstract
We investigated the nature of sensory integration deficits in postural control of young adults with ASD. Postural control was assessed in a fixed environment, and in three environments in which sensory information about body sway from visual, proprioceptive or both channels was inaccurate. Furthermore, two levels of inaccurate information were used within each channel (gain 1 and 1.6). ASD participants showed greater postural sway when information from both channels was inaccurate. In addition, control participants' ellipse area at gain 1.6 was identical to ASD participants' at gain 1, reflecting hyper-reactivity in ASD. Our results provide evidence for hyper-reactivity in posture-related sensory information, which reflects a general, rather than channel-specific sensory integration impairment in ASD.
Journal of autism and developmental disorders, 2016 · doi:10.1007/s10803-015-2621-4