title: A study of intellectual abilities in high-functioning people with autism.
abstract: This research extends previous research regarding the intellectual functioning of autistic individuals on standardized measures of intelligence (Wechsler Adult Intelligence Scale-Revised and the Wechsler Intelligence Scale for Children-Revised). In Study I 33 individuals with autism who closely fit the DSM-III criteria were studied. Clear evidence was found that differentiates these individuals' verbal intellectual processes from their visual-motor intellectual abilities. Principal components analysis was used to examine the interrelationship among the various intellectual abilities which such tests of intelligence measure. In Study II the intellectual abilities of a group of autistic 8- to 12-year-olds were compared to age-matched groups of children with receptive developmental language disorder, dysthymic disorder, or oppositional disorder. The intellectual abilities of autistic children were significantly different from the other groups of children.
authors.affiliation: Neuropsychology Research Laboratory, Children's Hospital Research Center, San Diego, California.
authors.forename: A J
authors.initials: AJ
authors.lastname: Lincoln
authors.forename: E
authors.initials: E
authors.lastname: Courchesne
authors.forename: B A
authors.initials: BA
authors.lastname: Kilman
authors.forename: R
authors.initials: R
authors.lastname: Elmasian
authors.forename: M
authors.initials: M
authors.lastname: Allen
mesh_terms: D000293:Adolescent; D000328:Adult; D001321:Autistic Disorder / Q000523:psychology*; D002648:Child; D002653:Child Behavior Disorders / Q000523:psychology; D003866:Depressive Disorder / Q000523:psychology; D006801:Humans; D007360:Intelligence; D007805:Language Development Disorders / Q000523:psychology; D011597:Psychomotor Performance; D014705:Verbal Behavior; D014888:Wechsler Scales