what part of the brain is first affected by dementia?
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The hippocampus, located within the temporal lobe, is responsible for making new memories and is often one of the first areas of the brain that is damaged by dementia. The outer layer of the cerebellum is the cortex, which is involved with memory, interpretation of sights and sounds, and thought generation.
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Changes in the Aging Brain Certain parts of the brain shrink, especially those important to learning and other complex mental activities. In certain brain regions, communication between neurons (nerve cells) can be reduced. Blood flow in the brain may also decrease.
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Forebrain. The Cerebrum: Also known as the cerebral cortex, the cerebrum is the largest part of the human brain, and it is associated with higher brain function such as thought and action. Nerve cells make up the gray surface, which is a little thicker than our thumb.
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Answer. cerebrum is the main thinking part of the brain.it controls the involuntary movements,concentration,planning,decision making,memory,intelligence and intellectual activities.
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Alzheimer's disease is a degenerative brain disease and the most common form of dementia. Dementia is not a specific disease. It's an overall term that describes a group of symptoms.
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In most common types of dementias there is widespread degeneration in the cerebral cortex – such as the plaques and neuro fibrillation tangles which are the hallmark of Alzheimer's disease. In subcortical dementia, there is targeted damage to regions lying under the cortex.
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Temporal lobe. When a stroke affects the temporal lobe, situated at ear level and underneath both the parietal and frontal lobes, it can produce language problems known as aphasia (difficulty understanding speech, verbalizing thoughts, reading, or writing).
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There are some overlapping symptoms, but in general, Alzheimer's affects language and memory, while Parkinson's affects problem solving (executive function), speed of thinking, memory and other cognitive functions, as well as mood.
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Lewy bodies affect several different brain regions in Lewy body dementia: The cerebral cortex, which controls many functions, including information processing, perception, thought, and language. The limbic cortex, which plays a major role in emotions and behavior.
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Specific symptoms may include confusion, slurred speech, or impaired thinking. This type of vascular dementia is also known as multi-infarct dementia. Less often, vascular dementia develops after a person experiences a major stroke (one that blocks a large blood vessel and causes significant brain damage).
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Causes of frontotemporal dementia Frontotemporal dementia is caused by clumps of abnormal protein forming inside brain cells. These are thought to damage the cells and stop them working properly. The proteins mainly build up in the frontal and temporal lobes of the brain at the front and sides.
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Aphasia symptoms associated with dementia People with the most common types of dementia, such as Alzheimer's disease and vascular dementia, usually have a mild form of aphasia. This often involves problems finding words and can affect names, even of people they know well.
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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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Worldwide Alzheimer's Statistics The top ten countries who are most affected by Alzheimer's include (in the correct order of highest rate): Finland, United States, Canada, Iceland, Sweden, Switzerland, Norway, Denmark, Netherlands, and Belgium.
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["ALZHEIMER'S DISEASE.", 'GERONTOLOGY.', 'MEMORY/COGNITIVE PROCESSES.', 'MENTAL HEALTH.', 'NEUROBIOLOGY.', 'NUTRITION/NUTRIENTS.']
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Parts of the Brain Alcohol Affects The first area compromised is the cortex, which causes confusion and lowers inhibitions. Terrible jokes start to seem funny, and you are less afraid to talk to new people or sing bad karaoke. Next, it hits the cerebellum, altering movement and balance.
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Dementia is a symptom of some neurodegenerative diseases, and may include memory loss and difficulties with thinking, problem-solving, or language. Neurodegenerative diseases are strongly linked with age, and the UK and other European countries have an increasingly ageing population.