Intellectual characteristics using WISC-IV in children with myelomeningocele

Purpose: Children with spina bifida are known to have various intellectual characteristics, including nonverbal learning disabilities due to hydrocephalus. While intelligence tests can ascertain the individual profiles of children with delays in intellectual development, there are few opportunities to clarify the intellectual characteristics of children who have never been identified as having delays in intellectual development. This study aims to clarify the intellectual characteristics as well as areas for intervention and improvement of children with myelomeningocele who show no delays in intellectual development. Methods: The Wechsler Intelligence Scale for Children-Fourth Edition was performed on six children (including four children with shunted hydrocephalus) aged 6-15 years. The Full-Scale Intelligence Quotient (FSIQ), index scores, and core subtest scores were analysed. Results: Processing Speed Index and Cognitive Proficiency Index were low. The General Ability Index was average, and there were no differences between Verbal Comprehension Index and Perceptual Reasoning Index. Conclusion: Children with myelomeningocele have low processing speeds. We consider the General Ability Index a better index of intrinsic intelligence than the FSIQ for such children. With appropriate support, children with spina bifida may be able to effectively demonstrate their skills and abilities at school and in society.