Assessment & Research

Developmental lag of visuospatial attention in Duchenne muscular dystrophy.

Piccini et al. (2015) · Research in developmental disabilities 2015
★ The Verdict

Boys with DMD pay attention like kids three years younger — plan tasks accordingly.

✓ Read this if BCBAs working with school-age boys with Duchenne muscular dystrophy in clinic or school settings.
✗ Skip if Practitioners focused only on ASD or adult populations.

01Research in Context

01

What this study did

Piccini et al. (2015) tested how boys with Duchenne muscular dystrophy pay attention. They used simple computer tasks that measure voluntary and automatic visuospatial attention.

The boys were compared to typically developing kids of different ages. The goal was to see if attention skills matched their actual age or lagged behind.

02

What they found

Boys with DMD scored like children three years younger on both types of attention tasks. Their visuospatial attention is developmentally delayed, not just slower.

This lag showed up in both voluntary (chosen) and automatic (reflex) attention. The delay was consistent across tasks.

03

How this fits with other research

Tsai et al. (2010) saw a similar delay in kids with developmental coordination disorder. These children also needed more time on visuospatial tasks and showed weaker brain responses.

Wilson et al. (2023) found a different pattern in adults with neurofibromatosis type 1. They had subtle visuomotor issues but no broad attention lag, showing that genetic disorders affect attention in different ways.

Fitzgerald et al. (2015) looked at teens with autism. They performed attention tasks normally, but brain scans showed unusual network activity. This contrast highlights that DMD boys show clear behavioral delays, while ASD teens compensate behaviorally despite brain differences.

04

Why it matters

If you work with boys who have DMD, treat their attention skills like those of a younger child. Give extra time, break tasks into smaller steps, and use visual cues. Don’t assume they’re being inattentive — their brain is just running on a three-year delay. Adjust expectations and teaching pace accordingly.

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Cut your attention task length in half and add 3-second wait time before prompts.

02At a glance

Intervention
not applicable
Design
quasi experimental
Sample size
60
Population
other
Finding
negative
Magnitude
medium

03Original abstract

Children with Duchenne muscular dystrophy (DMD) present a specific deficit of voluntary attention but to date there has been no clear characterization of their attentional skills. The present study investigated the hypothesis that DMD patients present deficits of both voluntary and automatic visuospatial attention systems and that their performance could be equivalent to that of younger healthy males. Twenty males (mean age 10 years) with diagnosis of DMD, 20 age-matched healthy males (10 years 3 months) and 20 healthy younger males (7 years 6 months) were required to perform two visuospatial attention tasks: voluntary and automatic. In the voluntary task, the performance of the DMD group was significantly worse than that of the age-matched group, and equal to that of the younger controls. In the automatic attention task also, the performance of the DMD patients was less efficient than that of the age-matched controls and equal to that of the younger children. This study supports the previous report of voluntary attention deficit in DMD and extends the evidence to include also an automatic attention system deficit. The development level of attention in DMD patients is below that expected for their age and corresponds to a delay of about three years.

Research in developmental disabilities, 2015 · doi:10.1016/j.ridd.2014.09.021