Short answer
When assessing or designing for individuals with potential motor coordination challenges, consider evaluating performance under conditions of dual-tasking to reveal more profound deficits.
- Field
- Human Factors
- Source
- Journal of Clinical Psychology (2025)
- Method
- Experimental comparison
- Sample
- 32 participants (16 with DCD, 16 typically developing)
- Evidence
- Strong effect
Introducing a secondary cognitive task alongside a manual dexterity test significantly highlights performance differences between children with and without coordination disorders, suggesting that motor control issues are exacerbated under increased cognitive load. This human factors research insight is drawn from a 2025 study published in Journal of Clinical Psychology. Using Experimental comparison with 32 participants (16 with DCD, 16 typically developing), researchers explored how this design variable affects real-world outcomes. The key design takeaway: When assessing or designing for individuals with potential motor coordination challenges, consider evaluating performance under conditions of dual-tasking to reveal more profound deficits.
Dual-tasking reveals underlying motor control deficits in children with coordination disorders
Introducing a secondary cognitive task alongside a manual dexterity test significantly highlights performance differences between children with and without coordination disorders, suggesting that motor control issues are exacerbated under increased cognitive load.
Journal of Clinical Psychology · 2025
Key Findings
- 01Children with DCD performed significantly worse than typically developing children across all manual task conditions (unimanual, bimanual, and dual-task).
- 02The dual-task condition did not disproportionately affect children with DCD compared to typically developing children, nor was it significantly influenced by attentional difficulties reported by parents.
Application
Design takeaway
When assessing or designing for individuals with potential motor coordination challenges, consider evaluating performance under conditions of dual-tasking to reveal more profound deficits.
How to apply
When designing a new tool or activity that requires fine motor skills, test its usability with a dual-task paradigm to see if it highlights difficulties for specific user groups.
Project actions
- 01When designing a product, consider if it requires significant cognitive attention alongside physical manipulation.
- 02If testing a product for users with potential motor challenges, try having them perform a simple secondary task (like listening to instructions) while using it.
Method & Evidence
Variables
Strengths & Limitations
Strengths
- +Direct comparison between a clinical group and a control group.
- +Use of a controlled experimental paradigm (dual-tasking).
Limitations
The specific cognitive task might not have been challenging enough to show a difference. The study focused on children, so findings may not directly apply to adults.
Reliability & validity
The use of a standardized test (TPT) and established statistical methods (ANOVA) contributes to reliability. Validity is supported by the significant differences found between groups, suggesting the tasks effectively measure relevant abilities.
Think critically
If dual-tasking didn't show a *differential* effect between groups, what other factors might explain the persistent performance gap in children with DCD?
Design Principles
"Task complexity, including cognitive load, can reveal underlying performance limitations."
Understanding how cognitive demands impact motor performance is crucial for designing assistive technologies, educational tools, and therapeutic interventions. This research provides a method for identifying subtle motor control limitations that might not be apparent during single-task execution.
What This Means for Your Design
When kids with coordination problems do a manual task and a thinking task at the same time, they are slower, but the thinking part doesn't make them *much* worse than other kids. This shows they are generally slower, not just worse when thinking is added.
How to use in your project
- 1.Use the dual-task paradigm as a method to assess the usability of your design, especially if it involves fine motor skills and cognitive engagement.
- 2.Compare performance on your design under single-task and dual-task conditions to identify potential user difficulties.
Add to My Project
Quick Cite
Paragraph starter
This research highlights the utility of the dual-task paradigm in revealing performance differences in manual dexterity. By introducing a concurrent cognitive task, subtle motor control deficits, particularly in individuals with conditions like DCD, can be more readily identified. This approach is valuable for design projects aiming to assess the cognitive load associated with manual tasks and to ensure products are usable across a spectrum of motor abilities.
Source
Journal of Clinical Psychology
Manual Dexterity Abilities and Dual Tasking in Children With Developmental Coordination Disorder and Typically Developing Children
journal · 2025
View sourceQuestions About This Research
- What does the research say about dual-tasking reveals underlying motor control deficits in children with coordination disorders?
- When assessing or designing for individuals with potential motor coordination challenges, consider evaluating performance under conditions of dual-tasking to reveal more profound deficits. Evidence: Journal of Clinical Psychology (2025).
- Why does "Dual-tasking reveals underlying motor control deficits in children with coordination disorders" matter for design?
- Understanding how cognitive demands impact motor performance is crucial for designing assistive technologies, educational tools, and therapeutic interventions. This research provides a method for identifying subtle motor control limitations that might not be apparent during single-task execution.
- How can designers apply this research?
- When assessing or designing for individuals with potential motor coordination challenges, consider evaluating performance under conditions of dual-tasking to reveal more profound deficits.
- What were the main findings?
- Children with DCD performed significantly worse than typically developing children across all manual task conditions (unimanual, bimanual, and dual-task).. The dual-task condition did not disproportionately affect children with DCD compared to typically developing children, nor was it significantly influenced by attentional difficulties reported by parents.
- What research method was used?
- Experimental comparison with 32 participants (16 with DCD, 16 typically developing).
- How strong is the evidence?
- Evidence strength is rated Strong effect, based on a 2025 journal from Journal of Clinical Psychology.
- What should I do differently in my next project?
- When designing a new tool or activity that requires fine motor skills, test its usability with a dual-task paradigm to see if it highlights difficulties for specific user groups.
- What are the limitations?
- The study did not find support for the automatization deficit hypothesis, suggesting alternative explanations for DCD may be more relevant. The specific cognitive task used might not have been sufficiently challenging to elicit differential effects.