UNSPECIFIED (1993) CONNECTIONIST APPROACHES TO LANGUAGE DISORDERS. [Journal Item]

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Abstract

This paper reviews the impact of connectionism upon our understanding of brain-damaged language performance, and attempts to explain why it is of importance for the neuropsychology of language. Connectionism is an approach to modelling cognitive processes using networks of interconnected, simple, neuron-like units. Behaviour emerges as the result of the interaction of these units. It has provided a new way of thinking about cognitive processing, emphasizing its low-level mechanisms. One supposed advantage of connectionism is its biological plausibility. It is possible to 'lesion' these systems by destroying some of the units or the connections between them. It is claimed that lesions to connectionist models of particular cognitive systems result in the appropriate acquired disorders. For example, lesioning a connectionist model of reading and word pronunciation results in surface dyslexia. Connectionist models of surface and deep dyslexia, and of word substitutions in aphasia, are described in detail. Some advantages and disadvantages of connectionism are discussed.

Item Type:	Journal Item
Subjects:	R Medicine > RC Internal medicine > RC0321 Neuroscience. Biological psychiatry. Neuropsychiatry
Journal or Publication Title:	APHASIOLOGY
Publisher:	TAYLOR & FRANCIS LTD
ISSN:	0268-7038
Date:	May 1993
Volume:	7
Number:	3
Number of Pages:	29
Page Range:	pp. 221-249
Publication Status:	Published
URI:	http://wrap.warwick.ac.uk/id/eprint/21367

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