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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).
Studies comparing the effects of aging on episodic memory, semantic memory, short-term memory and priming find that episodic memory is especially impaired in normal aging; some types of short-term memory are also impaired. [9] The deficits may be related to impairments seen in the ability to refresh recently processed information. [10]
This is an accepted version of this page This is the latest accepted revision, reviewed on 8 March 2025. Long-term brain disorders causing impaired memory, thinking and behavior This article is about the cognitive disorder. For other uses, see Dementia (disambiguation). "Senile" and "Demented" redirect here. For other uses, see Senile (disambiguation) and Demented (disambiguation). Medical ...
But if you’re worried about dementia—a fear that affects nearly 40% of adults 55 and over—it’s important to understand the real symptoms. Dementia, the general term for loss of memory ...
Motoric cognitive risk syndrome is a series of symptoms that suggest someone may be developing dementia. It’s characterized by slow walking and cognitive complaints, like trouble with memory and ...
Early intervention could reduce your risk of developing dementia-related disease Scientists reveal how to spot first signs of dementia nine years before diagnosis Skip to main content
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 between symptoms can occur as the disease progresses and spreads through the brain regions. [14]
After adjusting for sociodemographic and lifestyle factors, family history of dementia, baseline cognitive function and medications that affect cognition, the researchers analyzed whether there ...
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