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Learning, memory and executive functions in children with hydrocephalus

Barbro Lindquist1, Eva-Karin Persson, Paul Uvebrant

  • 1Department of Habilitation, Halmstad County Hospital, Halmstad, Sweden.

Acta Paediatrica (Oslo, Norway : 1992)
|April 9, 2008
PubMed

Insights

Children with hydrocephalus, even without learning disabilities, show impaired learning, memory, and executive functions. The condition itself, not the cause, significantly impacts cognitive development.

Area of Science:

  • Neuroscience
  • Pediatric Neurology
  • Cognitive Psychology

Background:

  • Hydrocephalus is a condition characterized by excess cerebrospinal fluid in the brain.
  • Cognitive deficits are common in children with hydrocephalus, but the impact of hydrocephalus itself, independent of other brain lesions, is not fully understood.
  • Previous studies often did not differentiate between isolated hydrocephalus and cases with associated conditions like myelomeningocele (MMC).

Purpose of the Study:

  • To investigate learning, memory, and executive functions in children with hydrocephalus but without diagnosed learning disabilities.
  • To compare cognitive abilities between children with isolated hydrocephalus and those with hydrocephalus combined with myelomeningocele (MMC).

Main Methods:

  • A cohort of 36 children with hydrocephalus (intelligence quotient [IQ] ≥70) was assessed using the neuropsychological assessment of the school-aged child (NIMES) test battery.
  • Participants were compared to age- and gender-matched control groups.
  • The study included children born between 1989-1993 in western Sweden.

Main Results:

  • Children with hydrocephalus demonstrated significant impairments in learning, memory, and executive functions compared to controls, with the exception of registration and recognition skills.
  • No significant cognitive differences were observed between children with infantile hydrocephalus and those with hydrocephalus associated with MMC.
  • Even children with an IQ above 84 performed significantly worse than their non-hydrocephalic peers.

Conclusions:

  • Hydrocephalus is associated with significant deficits in learning, memory, and executive functions, even in children with an IQ of 70 or higher and without overt learning disabilities.
  • The presence of hydrocephalus itself appears to be a primary factor influencing cognitive development, more so than the underlying etiology, when major brain lesions are absent.
  • These findings highlight the importance of addressing hydrocephalus as a significant factor in cognitive outcomes in children.
Abstract

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