“Deep” language disorders in nonfluent progressive Aphasia: an evaluation of the “summation” account of semantic errors across language production tasks.

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Title: “Deep” language disorders in nonfluent progressive Aphasia: an evaluation of the “summation” account of semantic errors across language production tasks.
Authors: Tree, Jeremy J. (AUTHOR), Kay, Janice (AUTHOR), Perfect, Timothy J. (AUTHOR)
Source: Cognitive Neuropsychology. Sep2005, Vol. 22 Issue 6, p643-659. 17p.
Subjects: Language disorders, Communicative disorders, Language & languages, Aphasia, Speech disorders
Abstract: This study focuses on the pattern of impairments seen in a new case KT, diagnosed with nonfluent progressive aphasia (NFPA), a degenerative disorder of language production. A systematic examination of KT's performance on a wide range of language production tasks (i.e., repetition, reading, spelling, spoken and written naming) determined that both written naming and repetition were better preserved than reading, spelling-to-dictation, and spoken naming. Closer examination of error performance in both reading aloud and written production revealed evidence of “deep dyslexia” and “deep dysgraphia” that has not been documented in previous cases of NFPA, and as such the present case represents the first detailed case study of this pattern of impairment in the context of progressive aphasia. An evaluation and discussion of such deep language impairment disorders in the context of other cases of NFPA has been undertaken with reference to the summation hypothesis proposed by Hillis and Caramazza (1991, 1995). It is suggested that as a principle that holds across all language production tasks, this account can encompass patterns of deep disorders thus far reported in NFPA, although other theoretical hypotheses cannot be excluded. [ABSTRACT FROM AUTHOR]
Copyright of Cognitive Neuropsychology is the property of Taylor & Francis Ltd and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)
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  Data: “Deep” language disorders in nonfluent progressive Aphasia: an evaluation of the “summation” account of semantic errors across language production tasks.
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  Data: <searchLink fieldCode="JN" term="%22Cognitive+Neuropsychology%22">Cognitive Neuropsychology</searchLink>. Sep2005, Vol. 22 Issue 6, p643-659. 17p.
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  Label: Abstract
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  Data: This study focuses on the pattern of impairments seen in a new case KT, diagnosed with nonfluent progressive aphasia (NFPA), a degenerative disorder of language production. A systematic examination of KT's performance on a wide range of language production tasks (i.e., repetition, reading, spelling, spoken and written naming) determined that both written naming and repetition were better preserved than reading, spelling-to-dictation, and spoken naming. Closer examination of error performance in both reading aloud and written production revealed evidence of “deep dyslexia” and “deep dysgraphia” that has not been documented in previous cases of NFPA, and as such the present case represents the first detailed case study of this pattern of impairment in the context of progressive aphasia. An evaluation and discussion of such deep language impairment disorders in the context of other cases of NFPA has been undertaken with reference to the summation hypothesis proposed by Hillis and Caramazza (1991, 1995). It is suggested that as a principle that holds across all language production tasks, this account can encompass patterns of deep disorders thus far reported in NFPA, although other theoretical hypotheses cannot be excluded. [ABSTRACT FROM AUTHOR]
– Name: AbstractSuppliedCopyright
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  Data: <i>Copyright of Cognitive Neuropsychology is the property of Taylor & Francis Ltd and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract.</i> (Copyright applies to all Abstracts.)
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        Type: general
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      – SubjectFull: Language & languages
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              Text: Sep2005
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