Which condition causes a general loss of knowledge for all concepts ?
MH SET - 2021, SET Exam - 2021,
Answer: B
The condition is semantic dementia.
Semantic dementia, a form of frontotemporal dementia involving the anterior temporal lobes, causes a progressive, general loss of conceptual knowledge: of the meanings of words, of objects and of facts, across all kinds of concepts and in every modality. Episodic memory for recent events is relatively spared in the early stages.
'Semantic impairment' is a descriptive term rather than a condition, and category-specific semantic deficits affect only some kinds of concepts, such as living things. 'Conceptual dementia' and 'monoamine deterioration' are not recognised conditions with this profile.
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