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Handedness in patients with developmental coordination disorder
1Child Neurodevelopment Center, Rakati, Tiberias, Isreal. origoez@actcom.co.il
Journal of Child Neurology
|December 15, 2007
Summary
Children with developmental coordination disorder show a higher prevalence of left-handedness. This finding is similar to patterns observed in attention-deficit disorder with hyperactivity and learning disorders.
Area of Science:
- Neuroscience
- Developmental Psychology
- Pediatrics
Background:
- Developmental coordination disorder (DCD) affects 5-8% of children.
- Comorbid conditions like attention-deficit disorder with hyperactivity (ADHD) and learning disorders are common in DCD.
- The prevalence of left-handedness in DCD is not well-established, though it's noted in dyslexia, learning disabilities, and autism.
Purpose of the Study:
- To investigate the distribution of hand dominance in children with DCD.
- To compare the frequency of left-handedness in children with DCD to their families and the general population.
Main Methods:
- A study involving 98 children diagnosed with DCD (aged 5.5-17 years).
- Assessment of hand dominance (left-handedness, ambidexterity).
- Comparison of hand dominance rates between affected children and their parents/siblings.
Main Results:
- 30.6% of children with DCD were left-handed.
- 13.3% of children with DCD were ambidextrous.
- Left-handedness prevalence in parents and siblings of children with DCD was similar to the general population.
Conclusions:
- Children with DCD exhibit a higher frequency of left-hand dominance.
- This increased prevalence of left-handedness in DCD aligns with findings in ADHD and learning disorders.
- Hand dominance may be a relevant indicator in neurodevelopmental disorders.
