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Patterns of linguistic and numerical performance in aphasia

BACKGROUND: Empirical research on the relationship between linguistic and numerical processing revealed inconsistent results for different levels of cognitive processing (e.g., lexical, semantic) as well as different stimulus materials (e.g., Arabic digits, number words, letters, non-number words)....

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Autores principales: Rath, Dajana, Domahs, Frank, Dressel, Katharina, Claros-Salinas, Dolores, Klein, Elise, Willmes, Klaus, Krinzinger, Helga
Formato: Online Artículo Texto
Lenguaje:English
Publicado: BioMed Central 2015
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4331419/
https://www.ncbi.nlm.nih.gov/pubmed/25648216
http://dx.doi.org/10.1186/s12993-014-0049-1
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author Rath, Dajana
Domahs, Frank
Dressel, Katharina
Claros-Salinas, Dolores
Klein, Elise
Willmes, Klaus
Krinzinger, Helga
author_facet Rath, Dajana
Domahs, Frank
Dressel, Katharina
Claros-Salinas, Dolores
Klein, Elise
Willmes, Klaus
Krinzinger, Helga
author_sort Rath, Dajana
collection PubMed
description BACKGROUND: Empirical research on the relationship between linguistic and numerical processing revealed inconsistent results for different levels of cognitive processing (e.g., lexical, semantic) as well as different stimulus materials (e.g., Arabic digits, number words, letters, non-number words). Information of dissociation patterns in aphasic patients was used in order to investigate the dissociability of linguistic and numerical processes. The aim of the present prospective study was a comprehensive, specific, and systematic investigation of relationships between linguistic and numerical processing, considering the impact of asemantic vs. semantic processing and the type of material employed (numbers compared to letters vs. words). METHODS: A sample of aphasic patients (n = 60) was assessed with a battery of linguistic and numerical tasks directly comparable for their cognitive processing levels (e.g., perceptual, morpho-lexical, semantic). RESULTS AND CONCLUSIONS: Mean performance differences and frequencies of (complementary) dissociations in individual patients revealed the most prominent numerical advantage for asemantic tasks when comparing the processing of numbers vs. letters, whereas the least numerical advantage was found for semantic tasks when comparing the processing of numbers vs. words. Different patient subgroups showing differential dissociation patterns were further analysed and discussed. A comprehensive model of linguistic and numerical processing should take these findings into account. ELECTRONIC SUPPLEMENTARY MATERIAL: The online version of this article (doi:10.1186/s12993-014-0049-1) contains supplementary material, which is available to authorized users.
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spelling pubmed-43314192015-02-19 Patterns of linguistic and numerical performance in aphasia Rath, Dajana Domahs, Frank Dressel, Katharina Claros-Salinas, Dolores Klein, Elise Willmes, Klaus Krinzinger, Helga Behav Brain Funct Research BACKGROUND: Empirical research on the relationship between linguistic and numerical processing revealed inconsistent results for different levels of cognitive processing (e.g., lexical, semantic) as well as different stimulus materials (e.g., Arabic digits, number words, letters, non-number words). Information of dissociation patterns in aphasic patients was used in order to investigate the dissociability of linguistic and numerical processes. The aim of the present prospective study was a comprehensive, specific, and systematic investigation of relationships between linguistic and numerical processing, considering the impact of asemantic vs. semantic processing and the type of material employed (numbers compared to letters vs. words). METHODS: A sample of aphasic patients (n = 60) was assessed with a battery of linguistic and numerical tasks directly comparable for their cognitive processing levels (e.g., perceptual, morpho-lexical, semantic). RESULTS AND CONCLUSIONS: Mean performance differences and frequencies of (complementary) dissociations in individual patients revealed the most prominent numerical advantage for asemantic tasks when comparing the processing of numbers vs. letters, whereas the least numerical advantage was found for semantic tasks when comparing the processing of numbers vs. words. Different patient subgroups showing differential dissociation patterns were further analysed and discussed. A comprehensive model of linguistic and numerical processing should take these findings into account. ELECTRONIC SUPPLEMENTARY MATERIAL: The online version of this article (doi:10.1186/s12993-014-0049-1) contains supplementary material, which is available to authorized users. BioMed Central 2015-02-04 /pmc/articles/PMC4331419/ /pubmed/25648216 http://dx.doi.org/10.1186/s12993-014-0049-1 Text en © Rath et al.; licensee BioMed Central. 2015 This is an Open Access article distributed under the terms of the Creative Commons Attribution License (http://creativecommons.org/licenses/by/4.0), which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly credited. The Creative Commons Public Domain Dedication waiver (http://creativecommons.org/publicdomain/zero/1.0/) applies to the data made available in this article, unless otherwise stated.
spellingShingle Research
Rath, Dajana
Domahs, Frank
Dressel, Katharina
Claros-Salinas, Dolores
Klein, Elise
Willmes, Klaus
Krinzinger, Helga
Patterns of linguistic and numerical performance in aphasia
title Patterns of linguistic and numerical performance in aphasia
title_full Patterns of linguistic and numerical performance in aphasia
title_fullStr Patterns of linguistic and numerical performance in aphasia
title_full_unstemmed Patterns of linguistic and numerical performance in aphasia
title_short Patterns of linguistic and numerical performance in aphasia
title_sort patterns of linguistic and numerical performance in aphasia
topic Research
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4331419/
https://www.ncbi.nlm.nih.gov/pubmed/25648216
http://dx.doi.org/10.1186/s12993-014-0049-1
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