Changes of the brain-Aspect 3
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Changes of the brain-Aspect 3
brain diseases, disorders, and aging
Curated by Sarah Rupchak
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aspect 3

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Tami Yaklich's comment, March 25, 2013 10:15 PM
Good job paraphrasing in this aspect
Tami Yaklich's comment, March 25, 2013 10:15 PM
30/30
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Alzheimer's Changes the Brain - Alzheimer's Association

Alzheimer's Changes the Brain - Alzheimer's Association | Changes of the brain-Aspect 3 | Scoop.it
Explore an interactive diagram of the brain with and without Alzheimer's Disease. Alzheimer's causes the brain to shrink dramatically, affecting memory and nearly all its functions.
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Sarah Rupchak's comment, March 17, 2013 8:44 PM
A common disease as you age that leads to nerve cell and tissue damage. THe brain shrinks dramatically which affects the way it functions. The cortex shrivels which controls thinking, planning, remembering. The hippocampus severely shrinks which is involved forming new memories.
Sarah Rupchak's comment, March 17, 2013 8:56 PM
Alzheimers is the most common form of Dementia. It deals with memory loss. It accounts for 80 percent of memory loss problems. The major risk factor is aging but up to 5 percent of people with the disease have early onset kind which happens at age 40 verses 60. It is a progressive disease with the symtpoms worsening over time. It can go to the extent that it is difficult to hold a conversation with one or difficult to respond to the enviorment.
Sarah Rupchak's comment, March 17, 2013 9:00 PM
It is the 6th leading cause of death in the United states. Survival usually lasts from 4 to 20 nyears once the symtpoms are noticable. There is no current cure but there are treatments for the symptoms. Some can temporaily slow down the worsening symptoms. It affects one out of eight elderly people.
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Sensing Change in the Environment

Research and articles on the three best-known human senses: vision, hearing and smelling. Learn how humans see, how we hear and how we smell. From the Howard Hughes Medical Institute.
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Sarah Rupchak's comment, March 17, 2013 7:45 PM
These sensoy maps doesnt correlate with size of the body like you would think. It compares with its sensitivity. Even though for example legs are large in length, they don't take up much space in the brain. On the other hand, the face which is greater in sensitivity are given more space. Also the tips of your fingers take up more space than your arms because of the complex of sensitivity.
Sarah Rupchak's comment, March 17, 2013 8:00 PM
In the brain, the cortex perceives color and frm. But the way the brain interpet motion is simple. The cortex "unveils the precise relationship between preception and activiy of a sensory neuron."
Sarah Rupchak's comment, March 17, 2013 8:08 PM
when the brain hears a noise it goes through a proccess known as binaural fusion. This is when the brain takes information from both earss and translates it into a known sound. It was shown through a study when electrodes would go off by different parts of the stimulating brain. It was shown that in the midbrain had a lot of stimulating neurons. This shows the so called "space specific neurons". These would fire and this resembles the map of the cortex for the senses.
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Mental Illness—Information about Mental Illness and the Brain (Page 1 of 3)

Mental Illness—Information about Mental Illness and the Brain (Page 1 of 3) | Changes of the brain-Aspect 3 | Scoop.it
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Sarah Rupchak's comment, March 17, 2013 9:31 PM
Mental illnesses are associated with a change in the brains structure chemistry and functions. About one out of every four people is affected by a mental illness either directly or indirectly. " •Four of the 10 leading causes of disability—major depression, bipolar disorder, schizophrenia, and obsessive-compulsive disorder—are mental illnesses." It makes up only 2 percent of our body weight, but it consumes 20 percent of the oxygen we breathe and 20 percent of the energy we take in. There are different techniques scienitists use to read brain disorders. One is a PET scan, SPECT, MRI, and EEG.
Sarah Rupchak's comment, March 17, 2013 9:39 PM
Scientists believe that there may be disruptions in the neurotransmitters dopamine, glutamate, and norepinephrine in individuals who have schizophrenia. Environmental factors such as head injury, poor nutrition, and exposure to toxins (including lead and tobacco smoke) can increase the likelihood of developing a mental illness. The illnesses that are most likely to have a genetic component include autism, bipolar disorder, schizophrenia, and ADHD.
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The Human Brain | Parts of the Brain | The Nervous System | Brain Disorders

Short description of your site here.
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Sarah Rupchak's comment, March 17, 2013 8:29 PM
When the brain does not get enough oxygen, a stroke typically occurs. When this happens, it damages a part of the brain and no longer works. MOst of time they lose the ability to talk. Many times its associated with high blood pressure or when arteries become hard.
Sarah Rupchak's comment, March 17, 2013 8:33 PM
Brain tumors happen when there is an abnormally growth of cells. Because they are bad cells making rapidly, they destroy healthy cells. As they continue to grow they create pressure on parts of the brain which continuely over time damages parts by making room for the tumor. It is an implicate process to remove such a tumor from the brain because of its sensitivty and importance.
Sarah Rupchak's comment, March 17, 2013 8:37 PM
Some common brain related disorders are one such as Autism. This is when there is an extra copy of chromosome which is a genetic disorders which causes this mental disorder. ANother genetic brain error is Huntington's disease which leads to "jerky movements of the body.