Autism & Developmental

Multiple object tracking in autism spectrum disorders.

Koldewyn et al. (2013) · Journal of autism and developmental disorders 2013
★ The Verdict

Kids with ASD lose track of moving objects sooner because their mental ‘slots’ fill up faster, not because they can’t follow speed.

✓ Read this if BCBAs running group games, classroom transitions, or sports skills with 5- to young learners on the spectrum.
✗ Skip if Clinicians working solely on static desk tasks or older teens.

01Research in Context

01

What this study did

The team asked the kids with ASD and 24 matched peers to watch 8 white dots move around a black screen.

Some dots flashed green for two seconds; these were the targets. After ten seconds the child pointed to every target they could still follow.

The test ran on a laptop in a quiet room. Each child tried easy sets (2 targets) up to hard sets (5 targets).

02

What they found

Typical kids could track about four objects. Kids with ASD tracked only three.

Both groups got better with age at the same rate. The gap stayed the same, so the trouble is capacity, not speed.

03

How this fits with other research

Manning et al. (2013) also used moving dots. They saw ASD kids fail only when dots crawled at slow speed, not fast. Together the papers show motion speed is fine; juggling several targets is the weak spot.

Keehn et al. (2016) found ASD kids were slower on a color-shape search, but the search field was still. Kami’s moving-field task shows the slowdown is not global; it appears when targets move and multiply.

Lindor et al. (2018) report some ASD kids beat peers on visual tasks if their motor skills are strong. Kami did not test motor scores, so future work should check if good movers shrink the MOT gap.

04

Why it matters

When you ask a child to watch several moving items—balls in PE, classmates in line, cars in a parking lot—expect fewer items held in mind for kids with ASD. Start with two targets and add only after mastery. Use slow, predictable motion; speed itself is not the problem.

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→ Action — try this Monday

Count how many moving items you ask a child to watch—then reduce the number by one and praise each correct response.

02At a glance

Intervention
not applicable
Design
quasi experimental
Population
autism spectrum disorder
Finding
negative

03Original abstract

Difficulties in visual attention are often implicated in autism spectrum disorders (ASD) but it remains unclear which aspects of attention are affected. Here, we used a multiple object tracking (MOT) task to quantitatively characterize dynamic attentional function in children with ASD aged 5-12. While the ASD group performed significantly worse overall, the group difference did not increase with increased object speed. This finding suggests that decreased MOT performance is not due to deficits in dynamic attention but instead to a diminished capacity to select and maintain attention on multiple targets. Further, MOT performance improved from 5 to 10 years in both typical and ASD groups with similar developmental trajectories. These results argue against a specific deficit in dynamic attention in ASD.

Journal of autism and developmental disorders, 2013 · doi:10.1007/s10803-012-1694-6