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Intelligence and achievement in children with myelomeningocele
K E Wills1, G N Holmbeck, K Dillon
1Children's Memorial Hospital, Chicago, Illinois 60614.
Insights
Children with myelomeningocele (MM) show cognitive deficits, particularly in visual-motor skills and arithmetic, which worsen with age. These findings suggest potential developmental differences in visual-perceptual-organizational functions.
Area of Science:
- Neuroscience
- Developmental Psychology
- Pediatrics
Background:
- Myelomeningocele (MM) is a complex congenital condition affecting neurological development.
- Cognitive outcomes in children with MM vary, necessitating detailed assessment.
- Understanding specific cognitive profiles is crucial for targeted interventions.
Purpose of the Study:
- To assess intelligence and academic achievement in children with myelomeningocele (MM).
- To identify specific cognitive deficits and their developmental trajectories.
- To explore potential underlying neurodevelopmental factors.
Main Methods:
- Retrospective analysis of medical records for 89 children (ages 4-14) with MM.
- Standardized intelligence and achievement testing, including Performance IQ, arithmetic, reading, spelling, and visual-motor integration.
- Comparison of scores against population averages and analysis of age-related changes.
Main Results:
- Children with MM scored below average but within the normal range on most cognitive tests.
- Greatest deficits were observed in Performance IQ, arithmetic, and visual-motor integration.
- Arithmetic and visual-motor deficits increased with age, while reading and spelling abilities remained stable.
Conclusions:
- Children with MM exhibit specific cognitive weaknesses, particularly in visual-perceptual-organizational skills.
- These deficits appear to follow a distinct developmental pattern compared to non-handicapped peers.
- Findings support theories of unique neurodevelopmental pathways in MM, such as Rourke's model of visual-perceptual-organizational dysfunction.
Abstract:
Intelligence and achievement test scores for 89 children with myelomeningocele (MM), ages 4 to 14 years, were obtained from medical records. These children scored below the population average but within the normal range on most tests. The greatest deficits occurred on Performance IQ, arithmetic achievement, and visual-motor integration (copying geometric designs). With increasing age, these children fell further behind age-peers on tests of arithmetic and visual-motor performance while keeping pace on reading and spelling tests. We speculate that these findings may reflect a developmental difference between MM children and nonhandicapped children in a visual-perceptual-organizational cognitive function such as Rourke (1987) has proposed.