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In neurology, semantic dementia (SD), also known as semantic variant primary progressive aphasia (svPPA), is a progressive neurodegenerative disorder characterized by loss of semantic memory in both the verbal and non-verbal domains. However, the most common presenting symptoms are in the verbal domain (with loss of word meaning).
Semantic dementia is a semantic memory disorder that causes patients to lose the ability to match words or images to their meanings. [54] It is fairly rare for patients with semantic dementia to develop category specific impairments, though there have been documented cases of it occurring.
One type is called semantic variant primary progressive aphasia (SV-PPA). The main feature of this is the loss of the meaning of words. It may begin with difficulty naming things. The person eventually may lose the meaning of objects as well. For example, a drawing of a bird, dog, and an airplane in someone with FTD may all appear almost the ...
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 ...
It is known that patients with Alzheimer's disease and patients with semantic dementia both exhibit difficulty in tasks that involve picture naming and category fluency. This is tied to damage to their semantic network, which stores knowledge of meanings and understandings. [citation needed]
A Dementia Care Plan can include recommended treatments and therapies for dementia symptoms and other health conditions, safety recommendations, caregiving support, end-of-life planning, and more ...
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.
Laura Boxley, clinical neuropsychologist at The Ohio State University Wexner Medical Center, tells Yahoo Life that there are two major types of frontotemporal dementia: PPA and behavioral variant ...
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