IQ decline following early unilateral brain injury: a longitudinal study.
We examine whether children with early unilateral brain injury show an IQ decline over the course of development. Fifteen brain injured children were administered an IQ test once before age 7 and again several years later. Post-7 IQ scores were significantly lower than pre-7 IQ scores. In addition, pre-7 IQ scores were lower for children with larger lesions, but children with smaller lesions and higher pre-7 IQ scores showed a greater IQ decline over time. These findings suggest that the cognitive outcomes of children with early lesions, particularly those with relatively small lesions, change over the course of development.
Levine
Susan C
SC
Department of Psychology, University of Chicago, Chicago, IL 60637, USA. s-levine@uchicago.edu
Kraus
Ruth
R
Alexander
Erin
E
Suriyakham
Linda Whealton
LW
Huttenlocher
Peter R
PR
D000293:Adolescent; D000328:Adult; D001930:Brain Injuries / Q000150:complications* / Q000503:physiopathology*; D002648:Child; D002675:Child, Preschool; D003072:Cognition Disorders / Q000175:diagnosis* / Q000209:etiology*; D005260:Female; D007839:Functional Laterality / Q000502:physiology; D006801:Humans; D007360:Intelligence; D008297:Male; D009483:Neuropsychological Tests; D012720:Severity of Illness Index