The role of phonological and orthographic information in lexical selection.
We report the performance of two patients with lexico-semantic deficits following left MCA CVA. Both patients produce similar numbers of semantic paraphasias in naming tasks, but presented one crucial difference: grapheme-to-phoneme and phoneme-to-grapheme conversion procedures were available only t...
| Publicado en: | Brain & Language Vol. 84; no. 3; pp. 372 - 399 |
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| Autores principales: | , , , , , , , |
| Formato: | case study research tables/charts Journal Article |
| Publicado: |
Academic Press Inc.
Mar2003
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| Acceso en línea: | Ver este registro en EBSCOhost |
| fields | @attributes: recordID: 1 pdfLink: plink: https://search.ebscohost.com/login.aspx?direct=true&db=ccm&AN=106843299&site=ehost-live header: @attributes: shortDbName: ccm uiTerm: 106843299 longDbName: CINAHL Complete uiTag: AN controlInfo: bkinfo: dissinfo: jinfo: jid: 0093934X 89A jtl: Brain & Language issn: 0093934X maglogo: N pubinfo: dt: Mar2003 vid: 84 iid: 3 pid: 735 pub: Academic Press Inc. place: Burlington, Massachusetts artinfo: ui: 106843299 106843299 NLM12662977 2003086549 10.1016/s0093-934x(02)00556-4 NLM12662977 106843299 ppf: 372 ppct: 27 formats: tig: atl: The role of phonological and orthographic information in lexical selection. aug: au: Alario F Schiller NO Domoto-Reilly K Caramazza A Alario, F-Xavier Schiller, Niels O Domoto-Reilly, Kimiko Caramazza, Alfonso affil: Harvard University, William James Hall, 33, Kirkland St., Cambridge, MA 02138, USA sug: subj: Aphasia Phonology Semantics Adult Aged, 80 and Over Case Studies Stroke Complications Chi Square Test Comparative Studies Descriptive Statistics Female Language Tests Male Speech Production Measurement Word Lists Funding Source Human Adult: 19-44 years Aged, 80 & over Female Male ab: We report the performance of two patients with lexico-semantic deficits following left MCA CVA. Both patients produce similar numbers of semantic paraphasias in naming tasks, but presented one crucial difference: grapheme-to-phoneme and phoneme-to-grapheme conversion procedures were available only to one of them. We investigated the impact of this availability on the process of lexical selection during word production. The patient for whom conversion procedures were not operational produced semantic errors in transcoding tasks such as reading and writing to dictation; furthermore, when asked to name a given picture in multiple output modalities--e.g., to say the name of a picture and immediately after to write it down--he produced lexically inconsistent responses. By contrast, the patient for whom conversion procedures were available did not produce semantic errors in transcoding tasks and did not produce lexically inconsistent responses in multiple picture-naming tasks. These observations are interpreted in the context of the summation hypothesis (Hillis & Caramazza, 1991), according to which the activation of lexical entries for production would be made on the basis of semantic information and, when available, on the basis of form-specific information. The implementation of this hypothesis in models of lexical access is discussed in detail. pubtype: Academic Journal doctype: case study research tables/charts Journal Article ougenre: Article language: English refInfo: holdings: @attributes: islocal: N |
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