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Westermann, Gert; Ruh, Nicolas – Psychological Review, 2012
We present a neural network model of learning and processing the English past tense that is based on the notion that experience-dependent cortical development is a core aspect of cognitive development. During learning the model adds and removes units and connections to develop a task-specific final architecture. The model provides an integrated…
Descriptors: Learning Problems, Semantics, Brain Hemisphere Functions, Aphasia
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Faroqi-Shah, Yasmeen – Neuropsychologia, 2008
Errors in the production of verb inflections, especially tense inflections, are pervasive in agrammatic Broca's aphasia ("*The boy eat"). The neurolinguistic underpinnings of these errors are debated. One group of theories attributes verb inflection errors to disruptions in encoding the verb's morphophonological form, resulting from either a…
Descriptors: Sentences, Semantics, Verbs, Aphasia
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Grande, Marion; Hussmann, Katja; Bay, Elisabeth; Christoph, Swetlana; Piefke, Martina; Willmes, Klaus; Huber, Walter – International Journal of Language & Communication Disorders, 2008
Background: Spontaneous speech of aphasic persons is often scored on rating scales assessing aphasic symptoms. Rating scales have the advantage of an easy and fast scoring system, but might lack sensitivity. Quantitative analysis of either aphasic symptoms or basic parameters provides a useful alternative. Basic parameters are essential units of…
Descriptors: Speech Communication, Aphasia, Child Language, Rating Scales
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Roland, Douglas; Dick, Frederic; Elman, Jeffrey L. – Journal of Memory and Language, 2007
Many recent models of language comprehension have stressed the role of distributional frequencies in determining the relative accessibility or ease of processing associated with a particular lexical item or sentence structure. However, there exist relatively few comprehensive analyses of structural frequencies, and little consideration has been…
Descriptors: Sentence Structure, Psycholinguistics, Grammar, Child Language