The nature of naming errors in primary progressive aphasia versus acute post-stroke aphasia.
Neuropsychology
; 24(5): 581-9, 2010 Sep.
Article
em En
| MEDLINE
| ID: mdl-20804246
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.
Texto completo:
1
Base de dados:
MEDLINE
Assunto principal:
Afasia
/
Semântica
/
Comportamento Verbal
/
Córtex Cerebral
/
Afasia Primária Progressiva
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Acidente Vascular Cerebral
/
Transtornos da Linguagem
Tipo de estudo:
Etiology_studies
Limite:
Adult
/
Aged
/
Aged80
/
Female
/
Humans
/
Male
/
Middle aged
Idioma:
En
Ano de publicação:
2010
Tipo de documento:
Article