how are dementia and alzheimer's disease related quizlet?
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Dementia is an overall term used to describe symptoms that impact memory, performance of daily activities, and communication abilities. Alzheimer's disease is the most common type of dementia. Alzheimer's disease gets worse with time and affects memory, language, and thought.
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Despite the above similarities, the two disorders also have important differences. As expected, cognitive symptoms prevail in dementia and mood symptoms in bipolar disorder. In dementia but not in bipolar disorder there is evidence that brain structural abnormalities are diffuse and hippocampal volumes are smaller.
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The most common types of dementia – Alzheimer's disease, vascular dementia, dementia with Lewy bodies and frontotemporal dementia – are all progressive. This means that the structure and chemistry of the brain become increasingly damaged over time.
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Hardening of the arteries, or atherosclerosis, is a natural part of aging, while Alzheimer's and other forms of dementia are not. A 1997 study was one of the first to link dementia and atherosclerosis, stating that people with severely hardened arteries were three times more likely to have dementia.
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Alzheimer's disease is the most common cause of dementia in people older than age 65. Delirium is a sudden change in how well a person's brain is working (mental status). Delirium can cause confusion, change the sleep-wake cycles, and cause unusual behavior.
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Damage to the blood vessels is common in people with diabetes. This damage can lead to cognitive problems and vascular dementia. These are often seen with symptoms of AD. The results of one study show that AD is closely connected to insulin signaling and glucose metabolism in the brain.
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Another complicating factor is that many people with both Lewy body dementia and Parkinson's disease dementia also have plaques and tangles — hallmark brain changes linked to Alzheimer's disease.
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We found that a history of bipolar disorder significantly increases the risk of dementia in older adults. Our results provide robust evidence that mood disorders in general, and not only major depressive disorders, are associated with increased risk of dementia (17,18).
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Both mild cognitive impairment and mild dementia are characterized by objective evidence of cognitive impairment. The main distinctions between mild cognitive impairment and mild dementia are that in the latter, more than one cognitive domain is involved and substantial interference with daily life is evident.
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One of the hallmarks of early stage Alzheimer's disease is short-term memory loss. Those with the disease lose the ability to perform routine tasks. Keep in mind that while AD affects memory, but it involves far more than simple forgetfulness.
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Alzheimer's disease is one type of dementia, but it's not the only one. There are many different types and causes of dementia, including: Lewy body dementia. Frontotemporal dementia.
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Dementia can affect areas of the brain that are responsible for movement and balance. Many individuals affected by Alzheimer's and other types of dementia gradually lose the ability to walk and perform everyday tasks.
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While senility is a loosely used and somewhat inaccurate and negative reference to cognitive loss, dementia is an accepted medical term. Dementia includes a broad range of brain conditions that cause a progressive decline in a person's ability to think and remember.
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Dementia is an umbrella term used to describe a clinical syndrome of progressive cognitive decline, but its subtypes are classified according to the cause of dementia.
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Dementia is a general term for a decline in mental ability severe enough to interfere with daily life. Alzheimer's is the most common cause of dementia. Alzheimer's is a specific disease.
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["Alzheimer's Disease.", 'Vascular Dementia.', 'Lewy Body Dementia.']
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Dementia is a syndrome – usually of a chronic or progressive nature – in which there is deterioration in cognitive function (i.e. the ability to process thought) beyond what might be expected from normal ageing.