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The effect of congenital hand differences on handedness in children
Christopher Jones1, Kara Lekuse2, Orla Duncan3
1Department of Plastic Surgery, Alder Hey Children's Hospital, Liverpool, UK.
Insights
Congenital hand differences (CHD) significantly influence handedness in children. Even with a right-sided CHD, handedness patterns deviate from the general population, indicating a notable impact.
Area of Science:
- Developmental biology
- Neuroscience
- Pediatrics
Background:
- Handedness, the preferential use of one hand, is a complex trait.
- Congenital hand difference (CHD) refers to structural anomalies present at birth affecting the hand.
- The relationship between developmental variations and handedness is not fully understood.
Abstract:
We investigated whether handedness is influenced by the presence of a congenital hand difference (CHD). Among 31 children with right-sided CHDs, 13 were left-handed and 18 were right-handed, regardless of severity. This was significantly different from the normal population, suggesting that CHD does influence handedness.
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