Handedness and cognitive functions in pervasive developmental disorders.
J Autism Dev Disord
; 15(3): 323-33, 1985 Sep.
Article
em En
| MEDLINE
| ID: mdl-4030665
ABSTRACT
This paper is concerned with what abnormal handedness in Pervasive Developmental Disorders (PDD) reveals about the presence, lateralization, and severity of cerebral dysfunction in this population. From previous work, it was predicted that left-handedness would be elevated in the sample and that mixed-handedness subjects should be more impaired than those with established hand dominance. A battery of cognitive and motor tests were administered to a group of PDD children with autistic symptoms, and performance was compared for the left-handed, right-handed, and mixed-preference children. It was found that left-handers tended to do better than right-handers on all cognitive measures, while the mixed-preference children tended to be the lowest on all cognitive measures. No differences were found on motor measures. An extension of the Satz (1972) model, assuming early brain damage, was developed to explain the superiority of the left-handed children; an alternative explanation assuming anomalous lateralization patterns in the natural left-handers was also suggested.
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Coleções:
01-internacional
Base de dados:
MEDLINE
Assunto principal:
Transtornos Globais do Desenvolvimento Infantil
/
Cognição
/
Lateralidade Funcional
Tipo de estudo:
Prognostic_studies
Limite:
Adolescent
/
Child
/
Child, preschool
/
Female
/
Humans
/
Male
Idioma:
En
Ano de publicação:
1985
Tipo de documento:
Article