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Neuropsychologia. 2000;38(2):186-202.

Classical anomia: a neuropsychological perspective on speech production.

Author information

1
MRC Cognition and Brain Sciences Unit, Cambridge, UK. matt.lambon-ralph@mrc-cbu.cam.ac.uk

Abstract

We present data collected from two anomic aphasics. Thorough assessment of comprehension, oral reading and repetition revealed no underlying impairments suggesting that both patients were examples of classical anomia--word-finding difficulties without impaired semantics or phonology. We describe a series of experiments in which the degree of anomia was both increased and decreased, by cueing or priming with either a semantically related word or the target item. One of the patients also presented with an 'acquired' tip-of-the-tongue phenomenon. He was able to indicate with a high-degree of accuracy the syllable length of the target, and whether or not it was a compound word. Neither patient could provide the first sound/letter. The data are discussed in terms of discrete two-stage models of speech production, an interactive-activation theory and a distributed model in which the positive and negative computational consequences of the arbitrary relationship between sound and meaning are emphasised.

PMID:
10660229
[Indexed for MEDLINE]

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