Semantic and lexical features of words dissimilarly affected by non-fluent, logopenic, and semantic primary progressive aphasia
نویسندگان
چکیده
منابع مشابه
Verbal and non-verbal semantic impairment: From fluent primary progressive aphasia to semantic dementia
Selective disturbances of semantic memory have attracted the interest of many investigators and the question of the existence of single or multiple semantic systems remains a very controversial theme in the literature. Objectives To discuss the question of multiple semantic systems based on a longitudinal study of a patient who presented semantic dementia from fluent primary progressive aphas...
متن کاملWhite Matter Disruption and Connected Speech in Non-Fluent and Semantic Variants of Primary Progressive Aphasia
Differential patterns of white matter disruption have recently been reported in the non-fluent (nfvPPA) and semantic (svPPA) variants of primary progressive aphasia (PPA). No single measure is sufficient to distinguish between the PPA variants, but connected speech allows for the quantification of multiple measures. The aim of the present study was to further investigate the white matter correl...
متن کاملProgression of logopenic variant primary progressive aphasia to apraxia and semantic memory deficits
BACKGROUND Due to the nature of neurodegenerative disorders, patients with primary progressive aphasia develop cognitive impairment other than aphasia as the disorder progresses. The progression of logopenic variant primary progressive aphasia (lvPPA), however, has not been well described. In particular, praxic disorders and semantic memory deficits have rarely been reported. CASE PRESENTATIO...
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We report five patients with a stereotyped clinical syndrome characterized by fluent dysphasia with severe anomia, reduced vocabulary and prominent impairment of single-word comprehension, progressing to a stage of virtually complete dissolution of the semantic components of language. A marked reduction in the ability to generate exemplars from restricted semantic categories (e.g. animals, vehi...
متن کاملThe new classification of primary progressive aphasia into semantic, logopenic, or nonfluent/agrammatic variants.
Primary progressive aphasia (PPA), typically resulting from a neurodegenerative disease such as frontotemporal lobar degeneration or Alzheimer's disease, is characterized by a progressive loss of specific language functions with relative sparing of other cognitive domains. Three variants of PPA are now recognized: semantic variant, logopenic variant, and nonfluent/agrammatic variant. We discuss...
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ژورنال
عنوان ژورنال: Journal of the International Neuropsychological Society
سال: 2019
ISSN: 1355-6177,1469-7661
DOI: 10.1017/s1355617719000948