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Titolo:
Refractory dyslexia - Evidence of multiple task-specific phonological output stores
Autore:
Crutch, SJ; Warrington, EK;
Indirizzi:
Inst Neurol, Dementia Res Grp, Dept Clin Neurol, London WC1N 3BG, England Inst Neurol London England WC1N 3BG lin Neurol, London WC1N 3BG, England
Titolo Testata:
BRAIN
, volume: 124, anno: 2001,
parte:, 8
pagine: 1533 - 1543
SICI:
0006-8950(200108)124:<1533:RD-EOM>2.0.ZU;2-Z
Fonte:
ISI
Lingua:
ENG
Soggetto:
ACCESSING LEXICAL REPRESENTATIONS; UNILATERAL CEREBRAL-LESIONS; WORD-COMPREHENSION; ORGANIZATION; IMPAIRMENTS; DYSGRAPHIA; DYSPHASIA; KNOWLEDGE; APHASIA;
Keywords:
access disorders; refractoriness; phonology; output stores; task-specific;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Clinical Medicine
Life Sciences
Citazioni:
39
Recensione:
Indirizzi per estratti:
Indirizzo: Warrington, EK Natl Hosp Neurol & Neurosurg, Dementia Res Grp, 8-11 Queen Sq, London WC1N3BG, England Natl Hosp Neurol & Neurosurg 8-11 Queen Sq London England WC1N 3BG
Citazione:
S.J. Crutch e E.K. Warrington, "Refractory dyslexia - Evidence of multiple task-specific phonological output stores", BRAIN, 124, 2001, pp. 1533-1543

Abstract

We investigated the case of a patient whose reading was characterized by multiple phonemic paraphasic errors. An error analysis of a large corpus of reading responses (758 words, 86 non-words) highlighted the preponderance of phonological errors which did not occur in his naming, repetition or spontaneous speech. His comprehension of the written word was relatively preserved, even for words he was unable to read aloud. We suggest that his impairment lies at the level of the phonological output store. We also demonstrate that his reading performance was facilitated by increasing the response-stimulus delay. The strong influence of temporal factors is shown to be task-specific. Two main points are drawn from our results. First, we argue thatour patient can be characterized as having a refractory access type of deficit; to our knowledge, no previous case of a refractory deficit affecting word reading has been reported. Secondly, the task specificity of both the phonological error pattern and the sensitivity to temporal factors is difficult to reconcile with the idea of a unitary phonological output store. Contrary to orthodox neuropsychological models, we propose that there are independent stores specific for reading and spoken output.

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Documento generato il 02/12/20 alle ore 17:47:31