PUBLICATION DATE

2010-09

TITLE

The nature of naming errors in primary progressive aphasia versus acute post-stroke aphasia.

ISSUE

5

VOLUME

24

ISSN (print)

N/A

ISSN (electronic)

N/A

ABSTRACT

OBJECTIVE: To compare the distribution of error types across subgroups of primary progressive aphasia and poststroke aphasia in different vascular locations. METHOD: We analyzed naming errors in 49 individuals with acute left hemisphere ischemic stroke and 55 individuals with three variants of primary progressive aphasia. Location of atrophy or ischemic stroke was characterized using MRI. RESULTS: We found that distribution of error types was very similar across all subgroups, irrespective of the site or etiology of the lesion. The only significant difference across groups was the percentage of circumlocutions (F(7, 96) = 3.02, p = .005). Circumlocution errors were highest among logopenic variant PPA (24%) and semantic variant PPA (24%). Semantic coordinate errors were common in all groups, probably because they can arise from disruption of different cognitive processes underlying naming and, therefore, from different locations of brain damage. CONCLUSIONS: Semantic errors are common among all types of primary progressive aphasia and poststroke aphasia, and the type of error depends in part on the location of damage.

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FROM GRANT

  • Neural Bases Of Language And Cognitive Deficits In Acute Stroke And Recovery
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    14 TRIPLES      14 PREDICATES      15 URIs      10 LITERALS

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    1 articles:5c8cc6e72f8eaffd12fab89e399d153b sg:abstract OBJECTIVE: To compare the distribution of error types across subgroups of primary progressive aphasia and poststroke aphasia in different vascular locations. METHOD: We analyzed naming errors in 49 individuals with acute left hemisphere ischemic stroke and 55 individuals with three variants of primary progressive aphasia. Location of atrophy or ischemic stroke was characterized using MRI. RESULTS: We found that distribution of error types was very similar across all subgroups, irrespective of the site or etiology of the lesion. The only significant difference across groups was the percentage of circumlocutions (F(7, 96) = 3.02, p = .005). Circumlocution errors were highest among logopenic variant PPA (24%) and semantic variant PPA (24%). Semantic coordinate errors were common in all groups, probably because they can arise from disruption of different cognitive processes underlying naming and, therefore, from different locations of brain damage. CONCLUSIONS: Semantic errors are common among all types of primary progressive aphasia and poststroke aphasia, and the type of error depends in part on the location of damage.
    2 sg:doi 10.1037/a0020287
    3 sg:doiLink http://dx.doi.org/10.1037/a0020287
    4 sg:isFundedPublicationOf grants:2aa30c99346b8d11fa1fc229365037c3
    5 sg:issue 5
    6 sg:language English
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    8 sg:publicationYear 2010
    9 sg:publicationYearMonth 2010-09
    10 sg:scigraphId 5c8cc6e72f8eaffd12fab89e399d153b
    11 sg:title The nature of naming errors in primary progressive aphasia versus acute post-stroke aphasia.
    12 sg:volume 24
    13 rdf:type sg:Article
    14 rdfs:label Article: The nature of naming errors in primary progressive aphasia versus acute post-stroke aphasia.
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