The measured intelligence of autistic children

Autism and congenital cytomegalovirus

“…That is, the viral association with autism might be present only in those with other handicaps at birth. However, 75% of the autistic do have mental retardation as a second handicap (Rutter & Lockyer, 1967;Lotter, 1967;DeMyer et al, 1974). Also, 500/0 of mothers who have been exposed and infected with rubella virus during pregnancy are unaware of having been infected (Desmond, Wilson, Verniaud, Melnick, & Rawls, 1970).…”

Cognitive Deficits in the Pathogenesis of Autism*

“…However, numerous studies have shown that this is not the case in that although about three-quarters of autistic children are mentally retarded, one-fifth to onequarter are not (see, e.g., DeMyer et at., 1974). Severe autistic impairment is entirely compatible with high scores on at least some kinds of IQ tests.…”

Cognitive disorders of infantile autism: A study employing the WISC, spatial relationship conceptualization, and Gesture Imitations

“…The remaining subjects had no obvious history of brain damage, nor did they demonstrate signs of organic brain damage. Two control groups were used since the autistic children showed a severe imbalance or "scattering" of abilities in their cognition (DeMyer et al, 1974;Lockyer & Rutter, 1970). The first control group was age-and Performance IQ-matched in a one-to-one ratio (Table II).…”

“…2Address all correspondence to Dr. Masataka Ohta, Department of Neuropsychiatry, Faculty of Medicine, University of Tokyo, 7-3-1 Hongo, Tokyo,113,Japan. 45 Since the late 1960s, it has been noted that psychological tests have been effective in determining disorders in cognitive functioning (Alpern, 1967;DeMyer et al, 1973DeMyer et al, , 1974Lockyer & Rutter, 1970, Lotter, 1978. Autistic children show a characteristic performance pattern on the WISC, which researchers (Bartak, Rutter, & Cox, 1975;Lockyer & Rutter, 1970;Tymchuk, Simmons, & Neafsey, 1977;Wassing, 1965) have been able to replicate.…”