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Monaghan, Padraic; Shillcock, Richard – Brain and Language, 2007
Is it necessary to posit separate, explicit distinctions between representations in order to account for dissociations between consonant and vowel processing? We argue that a cognitive model of speech production based on cumulative lower-level properties is not only sufficient but more parsimonious in accounting for aphasic and dysgraphic patient…
Descriptors: Phonemes, Vowels, Aphasia, Learning Disabilities
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Roeltgen, David P.; Heilman, Kenneth M. – Applied Psycholinguistics, 1985
Proposes a theoretical information-processing-based neuropsychological model of writing and oral spelling which contains linguistic and motor components and which helps explain agraphia independently of other language disorders. Disruption of the phonological system is thought to cause phonological agraphia. Disruption of the lexical system is…
Descriptors: Handwriting, Information Processing, Language Handicaps, Language Processing
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Sawyer, Diane J. – Topics in Language Disorders, 2006
This article provides a brief overview of the various areas of research that have served to clarify the condition of dyslexia. Using topics and content appearing in A. L. Benton and D. Pearl's (1978) text, Dyslexia: An Appraisal of Current Knowledge, as the point of departure, evolution of the definitions of dyslexia is traced to the current and…
Descriptors: Reading Ability, Learning Disabilities, Genetics, Dyslexia
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Im-Bolter, Nancie; Johnson, Janice; Pascual-Leone, Juan – Child Development, 2006
Research suggests that children with specific language impairment (SLI) have processing limitations; however, the mechanisms involved have not been well defined or investigated in a theory-guided manner. The theory of constructive operators was used as a framework to explore processes underlying limited processing capacity in children with SLI.…
Descriptors: Language Impairments, Children, Language Skills, Language Acquisition
Tillman, Chester E.; And Others – 1973
Researchers investigating the cerebral information processing of visual stimuli have usually followed the pattern of stimulating the subject's eyes with light and observing accompanying changes in brain wave patterns. Such visually evoked responses (VERs) have been found to discriminate bright from dull children and dyslexic from normal readers.…
Descriptors: Cognitive Processes, Error Analysis (Language), Error Patterns, Language Processing
Roberts, David Harrill – 1982
Acknowledging the importance of sight to the writing process, the paper elucidates the processes of vision related to the composing process. In the opening section the physics of light and vision, optic neuroanatomy, and cortical responses to visual stimuli are explained. Next, theories of vision and data mapping are examined and their…
Descriptors: Aphasia, Dyslexia, Language Processing, Lateral Dominance