Semantic dementia (SD) is a progressive neurodegenerative disorder characterized by loss of semantic memory in both the verbal and non-verbal domains. The most common presenting symptoms are in the verbal domain however (with loss of word meaning) and it is characterized as a primary progressive aphasia.
semantic dementiaとは意味:意味痴呆{いみ ちほう} semantic dementia meaning:[Medicine] An acquired organic mental disorder with loss of intellectual abilities of sufficient severity to interfere with social or occupational functioning. The dysfunction is multifaceted and invo...