Assessment & Research

Deficits in the covert orienting of attention in children with Developmental Coordination Disorder: does severity of DCD count?

Chen et al. (2012) · Research in developmental disabilities 2012
★ The Verdict

Kids with DCD need more time to shift attention, and severity level does not change that fact.

✓ Read this if BCBAs working with school-age children with DCD in clinic or classroom settings.
✗ Skip if Practitioners serving only preschool or only ASD populations without DCD concerns.

01Research in Context

01

What this study did

The team tested how fast kids with Developmental Coordination Disorder can shift their eyes. They split the kids into two groups: moderate DCD and severe DCD. A third group of typically developing kids served as the comparison.

Each child sat in front of a screen. A cue flashed on one side, then a target appeared. The gap between cue and target lasted 100, 400, or 800 ms. The kids had to look at the target as soon as it popped up.

02

What they found

At the 800 ms gap, both DCD groups were slower than the typical kids. The surprise: moderate and severe DCD were equally slow. Severity did not make the delay worse.

At shorter gaps, all groups looked about the same. The trouble only showed up when the kids had to wait almost a full second.

03

How this fits with other research

Knaier et al. (2023) ran a similar lab study with the same age range. They found kids with DCD move less accurately, yet they adapt to visual shifts just like peers. Together, the two papers say: the problem is not learning new rules, it is acting quickly and precisely.

Kleberg et al. (2017) tested covert orienting in preschoolers with autism. A short beep erased their speed gap. In contrast, Chen et al. (2012) saw no cue that helped DCD kids. The takeaway: auditory primes may aid ASD attention, but they do not fix the DCD delay.

Spanoudis et al. (2011) warned that most DCD studies ignore real-life tasks. This lab result backs their call: if shifting attention is slow in a game, it will be slower while dressing or writing.

04

Why it matters

You now know that any child with DCD, mild or severe, may need extra wait time before switching tasks. Build brief pauses into transitions, like “hands on knees” before giving the next instruction. Use visual timers so the child sees when the shift will happen. These tiny schedule tweaks cost nothing and can cut frustration for both you and the learner.

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Insert a 1-second silent pause after giving a cue and before presenting the next instruction or material.

02At a glance

Intervention
not applicable
Design
quasi experimental
Sample size
113
Population
developmental delay
Finding
negative

03Original abstract

Children with Developmental Coordination Disorder (DCD) show deficits in the covert orienting of visuospatial attention, suggesting an underlying issue in attentional disengagement and/or inhibitory control. However, an important theoretical issue that remains unclear is whether the pattern of deficits varies with DCD severity. Fifty-one children with moderate DCD (MDCD), 24 children with severe DCD (SDCD), and 38 typically developing (TD) children participated in the study. Their performance was compared on the covert orienting of visuospatial attention task (COVAT), specifically the voluntary control mode. Results showed that the pattern of performance differed between groups. At a short stimulus-response asynchrony (350 ms), the difference in response times for validly and invalidly cued trials was similar for all three groups. However, at the longer SOA (800 ms), both DCD groups continued to show a relative disadvantage for responses that followed invalid cues. This suggests that a deficit in response inhibition and/or attentional disengagement is manifest in children with both moderate and severe DCD. The implications of these findings for theory and treatment are discussed.

Research in developmental disabilities, 2012 · doi:10.1016/j.ridd.2012.03.005