Classification and Diagnosis of Primary Progressive Aphasia Mika Otsuki 1 1Graduate School of Health Sciences, Hokkaido University Keyword: 原発性進行性失語 , 非流暢/失文法型 , 意味型 , 語減少型 , 原発性進行性発語失行 , primary progressive aphasia , nonfluent/agrammatic PPA , semantic PPA , logopenic PPA , primary progressive apraxia of speech pp.611-621
Published Date 2020/6/1
DOI https://doi.org/10.11477/mf.1416201571
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I have introduced primary progressive aphasia (PPA) with regard to frontotemporal lobar degeneration (FTLD) and evaluated the following elementary language symptoms for its diagnosis: agrammatism in speech production, apraxia of speech, phonemic paraphasia, naming impairment, impairment of single-word comprehension, and repetition. Furthermore, I have described the clinical symptoms, causative lesions, and pathological findings of three PPA variants —nonfluent/agrammatic, semantic, and logopenic PPA— according to the criteria proposed by Gorno-Tempni et al. (2011).

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