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A model of comprehension in spina bifida meningomyelocele: Meaning activation, integration, and revision

Published online by Cambridge University Press:  14 August 2007

MARCIA A. BARNES ,
JOELENE HUBER ,
AMBER M. JOHNSTON  and
MAUREEN DENNIS
MARCIA A. BARNES
Affiliation:
Department of Psychology, University of Guelph, Guelph, Ontario Department of Pediatrics, University of Toronto, Toronto, Ontario Program in Neuroscience and Mental Health, The Hospital for Sick Children, Toronto, Ontario
JOELENE HUBER
Affiliation:
Program in Neuroscience and Mental Health, The Hospital for Sick Children, Toronto, Ontario
AMBER M. JOHNSTON
Affiliation:
Department of Psychology, University of Guelph, Guelph, Ontario
MAUREEN DENNIS
Affiliation:
Program in Neuroscience and Mental Health, The Hospital for Sick Children, Toronto, Ontario Departments of Surgery and Psychology, University of Toronto, Toronto, Ontario
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Abstract

Spina bifida meningomyelocele (SBM) is a neurodevelopmental disorder associated with adequate development of word reading and single word comprehension, but deficient text and discourse comprehension. Studies of comprehension in children with SBM are reviewed in relation to a comprehension model in which meanings are either activated from the surface code or constructed through resource-intensive integration and revision processes to form representations of the text base and models of the situation described by the text. Two new studies probed the construction of situation models in SBM. Experiment 1 tested the ability to build spatial and affective situation models from single sentences in 86 children with SBM (8 to 18 years of age) and 37 control children (8 to 16 years of age). Experiment 2 tested the ability to integrate across sentences to build spatial situation models in 15 children with SBM and 15 age-matched controls. Compared to age peers, children with SBM did not construct situation models that required integration of information across sentences, even though they could construct such models from single sentences. The data bear on the distinctive SBM neurocognitive profile, and more generally, on the significance of integration processes for the constructive aspects of language comprehension. (JINS, 2007, 13, 854–864.)

Keywords

Neural tube defectsHydrocephalusComprehensionLanguageShort-term memory
Type
Research Article
Information
Journal of the International Neuropsychological Society , Volume 13 , Issue 5 , September 2007 , pp. 854 - 864
Copyright
2007 The International Neuropsychological Society

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