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[1] [2] [3] Semantic dementia is a disorder of semantic memory that causes patients to lose the ability to match words or images to their meanings. [4] However, it is fairly rare for patients with semantic dementia to develop category specific impairments, though there have been documented cases of it occurring. [5]
Semantic amnesia progressively evolves into dementia. Semantic dementia , a degenerative disorder, causes a progressive loss of semantic and conceptual knowledge. The region of the brain associated with semantic dementia is the left anterior temporal lobe [ 7 ] Patients experience difficulties in verbal identification of stimuli and have poor ...
FTD is traditionally difficult to diagnose owing to the diverse nature of the associated symptoms. Signs and symptoms are classified into three groups based on the affected functions of the frontal and temporal lobes: [8] These are behavioural variant frontotemporal dementia, semantic dementia, and progressive nonfluent aphasia. An overlap ...
The three clinical subtypes of frontotemporal lobar degeneration, frontotemporal dementia, semantic dementia and progressive nonfluent aphasia, are characterized by impairments in specific neural networks. [17] The first subtype, frontotemporal dementia, mainly affects a frontomedian network and impairs social cognition.
Some confusion exists in the terminology used by different neurologists. Mesulam's original description in 1982 of progressive language problems caused by neurodegenerative disease (which he called primary progressive aphasia (PPA) [4] [5] included patients with progressive nonfluent (aphasia, semantic dementia, and logopenic progressive aphasia.
Contextual repetition priming treatment is a technique which involves repeated repetition of names of pictures that are related semantically, phonologically, or are unrelated. Patients with impaired access to lexical-semantic representations show no long-term improvement in naming, but patients with good access to semantics show long-term benefits.
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