The validity of the inter- and/or intrahemispheric deficit hypothesis as an explanation of the co-occurrence of motor and language impairments.
From an initial cohort of 15 children, between the ages of 5 and 10 years, who had expressive oral language problems, 4 were shown in an earlier study to be both motor and language impaired. Two explanatory hypotheses were proposed to account for this communality: (a) cerebellar deficit; (b) inter- and/or intrahemispheric deficit. In order to explore the validity of the latter explanation, the same group of children, together with a matched control group, were required to carry out two sensory matching tests designed to tap inter- and intrahemispheric information processing abilities: hand-hand and foot-hand. The results, discussed in the light of Liederman's shielding model, provided more support for the hypothesis of an interhemispheric information processing problem from left to right rather than an intrahemispheric problem.
Estil
B
B
Programme of Sport Sciences, Faculty of Social Sciences and Technology Management, Norwegian University of Science and Technology (NTNU), 7491 Trondheim, Norway. Lise.Estil@svt.ntnu.no
Whiting
A
A
D002540:Cerebral Cortex / Q000002:abnormalities* / Q000503:physiopathology*; D002648:Child; D002675:Child, Preschool; D003071:Cognition / Q000502:physiology; D005260:Female; D007839:Functional Laterality / Q000502:physiology*; D006801:Humans; D007805:Language Development Disorders / Q000209:etiology* / Q000473:pathology / Q000503:physiopathology; D008297:Male; D008959:Models, Neurological; D009048:Motor Skills / Q000502:physiology; D019957:Motor Skills Disorders / Q000209:etiology* / Q000473:pathology / Q000503:physiopathology; D009434:Neural Pathways / Q000002:abnormalities* / Q000503:physiopathology*; D009483:Neuropsychological Tests; D015203:Reproducibility of Results; D014705:Verbal Behavior / Q000502:physiology