Intelligence test scores from infancy to adulthood for a craniopagus twin pair neurosurgically separated at 4 months of age.
Long-term effects in a neurosurgically separated twin pair were illuminated by standard psychological test scores obtained over a period from 2 to 38 years of age. Interdigitation of the gyri of their right frontal lobes had necessitated separation in two stages at 4 months of age. One twin clearly suffered some brain injury and showed some impairment during the testing at 5 years of age. The scores of both twins rose at the adult testing. The brighter twin has an IQ comparable to that of the mother. The unique data set is a kind of model for long-term assessment of early brain surgery, particularly with craniopagus twins.
Lansdell
H
H
National Institute of Neurological Disorders and Stroke, Bethesda, Maryland, USA. hcl@ego.psych.mcgill.ca
D000328:Adult; D001930:Brain Injuries / Q000150:complications; D002648:Child; D002675:Child, Preschool; D003072:Cognition Disorders / Q000209:etiology; D005260:Female; D006257:Head / Q000002:abnormalities* / Q000601:surgery*; D006801:Humans; D007223:Infant; D007360:Intelligence; D007361:Intelligence Tests; D007431:Intraoperative Complications; D014428:Twins, Conjoined / Q000601:surgery*