Patterns of dysgraphia in primary progressive aphasia compared to post-stroke aphasia.
Behav Neurol
; 26(1-2): 21-34, 2013.
Article
en En
| MEDLINE
| ID: mdl-22713396
ABSTRACT
We report patterns of dysgraphia in participants with primary progressive aphasia that can be explained by assuming disruption of one or more cognitive processes or representations in the complex process of spelling. These patterns are compared to those described in participants with focal lesions (stroke). Using structural imaging techniques, we found that damage to the left extrasylvian regions, including the uncinate, inferior fronto-occipital fasciculus, and sagittal stratum (including geniculostriate pathway and inferior longitudinal fasciculus), as well as other deep white and grey matter structures, was significantly associated with impairments in access to orthographic word forms and semantics (with reliance on phonology-to-orthography to produce a plausible spelling in the spelling to dictation task). These results contribute not only to our understanding of the patterns of dysgraphia following acquired brain damage but also the neural substrates underlying spelling.
Texto completo:
1
Colección:
01-internacional
Base de datos:
MEDLINE
Asunto principal:
Afasia
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Encéfalo
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Mapeo Encefálico
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Afasia Progresiva Primaria
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Accidente Cerebrovascular
/
Agrafia
Límite:
Aged
/
Aged80
/
Female
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Humans
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Male
/
Middle aged
Idioma:
En
Revista:
Behav Neurol
Asunto de la revista:
CIENCIAS DO COMPORTAMENTO
/
NEUROLOGIA
Año:
2013
Tipo del documento:
Article
País de afiliación:
Estados Unidos