Journal

The Japanese journal of neuropsychology

[Vol.37 No.3 contents]
Japanese/English

Full Text of this Article
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ArticleTitle Gogi (word-meaning) aphasia as a salient language symptom of semantic dementia
Language J
AuthorList Kenjiro Komori
Affiliation Office of Psychology, Department of Psychiatry, Juzen-YURINOKI Hospital
Publication Japanese Journal of Neuropsychology: 37 (3), 164-170, 2021
Received
Accepted
Abstract Gogi (word-meaning) aphasia is the most salient language symptom of semantic dementia (SD) which called selective disorder of semantic memory affected by anterior temporal lobe degeneration. Neuropsychological assessments reveals, (1) naming and comprehension deficits in word picture naming and matching tasks, (2) surface dyslexia in character-sound inconsistent kanji-word oral reading tasks, (3) loss of completion phenomenon in proverb completion tasks, (4) profound deficit of verbal semantic memory in comprehension tasks of idiom phrases. Be alert to the sign of idiosyncratic word usage as an earliest sign of Gogi aphasia which is caused by degradation of conceptual knowledge.
Keywords semantic dementia, Gogi aphasia, verbal semantic memory, idiosyncratic word usage, conceptual knowledge

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