Assessment & Research

Impaired Biological Motion Processing and Motor Skills in Adults with Autistic Traits.

Jacob et al. (2023) · Journal of autism and developmental disorders 2023
★ The Verdict

In typical adults, higher autistic traits predict slightly worse body-motion reading and hand-foot coordination.

✓ Read this if BCBAs who assess adults or teens without ASD diagnoses yet hear "I’m clumsy" or "I miss body cues."
✗ Skip if Clinicians who work only with early-childhood ASD where motor issues are already well mapped.

01Research in Context

01

What this study did

Burnham Riosa et al. (2023) gave online surveys to adults who do not have an autism diagnosis.

They asked how well the adults could read body movements and how steady their own hands and feet feel.

Then they scored each person on autistic traits to see if higher scores matched worse motion skills.

02

What they found

Adults with more autistic traits saw body motion less clearly and reported clumsier hands and feet.

The link was small but real, showing the trait alone can nudge both skills down.

03

How this fits with other research

van Timmeren et al. (2016) found teens with ASD still recognize body motion yet stop adapting to it after many views. Priscilla extends this idea to everyday adults who have only mild traits and shows even they process motion less well.

Wright et al. (2014) saw no body-motion ID gap in high-functioning ASD kids. That looks like a clash, but the kids had full ASD and extra practice games; the new study tests subtle traits in grown-ups without a label, so both can be true.

Fulceri et al. (2018) showed ASD kids move less smoothly when copying a partner. The adult survey data line up: poorer motion skill rides along with autistic features across the spectrum.

04

Why it matters

You may see adult clients who feel clumsy or miss social cues carried by body motion even though they never earned an ASD diagnosis. A quick motion-perception probe or a few balance trials could flag hidden trouble and guide your skill-building targets. Keep motor checks in your toolbox for everyone, not only clients with a label.

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Add one quick balance or motion-copy task to your intake for undiagnosed adults and note if they struggle.

02At a glance

Intervention
not applicable
Design
survey
Sample size
621
Population
neurotypical
Finding
negative
Magnitude
small

03Original abstract

The present study explored the relationship between biological motion (BioM) processing, motor skills, and autistic traits within a non-clinical sample of 621 adults (18-73 years, 51.8% female). Results indicated that adults with greater autistic traits also endorsed difficulties associated with developmental coordination disorder (DCD) in childhood and adulthood. Traits associated with autism spectrum disorder and DCD were predictive of BioM processing abilities. The results also revealed sex differences in DCD, autistic traits, and BioM processing. Overall, these findings suggest that adults with greater autistic traits experience both deficits in motor activities as well as underlying motor perceptual abilities.

Journal of autism and developmental disorders, 2023 · doi:10.1016/j.cpr.2013.07.005