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Article
October 1981

The Intelligence of Hydrocephalic Children

Author Affiliations

From the Departments of Psychology (Drs Dennis and Netley), Radiology (Drs Fitz and Harwood-Nash), and Surgery (Drs Hendrick, Hoffman, and Humphreys), The Hospital for Sick Children; and the Department of Psychology (Ms Sugar), York University, Toronto.

Arch Neurol. 1981;38(10):607-615. doi:10.1001/archneur.1981.00510100035004
Abstract

• In a group of 78 children with hydrocephalus in the first months of life, the level and pattern of intelligence were considered in relation to various parameters and symptoms of their condition. These included demography (age, sex, handedness); early developmental status; symptoms (visual, motor, and seizure); formative pathology; type of hydrocephalus; site of CSF obstruction; extent and configuration of cortical thinning; and shunt treatment. The common outcome of early hydrocephalus is an uneven growth of intelligence during childhood, with nonverbal intelligence developing less well than verbal intelligence. The origin of this selective cognitive deficit is in neither the hydrocephalic condition itself nor its treatment, but rather in the developmental brain anomalies and symptoms to which the hydrocephalic child is prone: in children with aqueduct blocks and intraventricular hydrocephalus, a selectively thin vertex and occipital lobe; in any hydrocephalic child, ocular abnormalities, motor deficits, and seizures.

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