Vision And Movement Essay Research Paper When — страница 3

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that has been considered is brain cell implants. The first brain cell implant was in 1982. It was given to a patient with Parkinson’s, and he survived the operation with a visible improvement. One positive idea to note about brain cell implants is that the brain doesn’t reject tissue as easily as the rest of our body does. But the critics started writing that taking brain tissue from one person and inserting it into a stranger is completely unethical and immoral. So a alternative had to be found. The alternative would come from our adrenal gland, which lies next to our kidneys. The makeup of the adrenal gland neurons is very similar to that of the original brain cell, and there weren’t any rejections either when the experiment was preformed on mice. This procedure offers

hope for the future. The doctors in charge of the operations have already completed two such operations, the first on in a male, didn’t help much, because not to long after the operation he had gone back to the same stage of Parkinson’s as he was before the operation. One thing is that he says that if he would be offered another operation, he wouldn’t hesitate. The other patient was a female, and her changes stayed with her. She has slightly improved, and now she is leading a better life because of it. What the future awaits us, no body knows, but the doctors are already planning patient number 3, 4, even 18. “Rhythms and Drives” What does it mean to be human? The answer to this question can have many meaning. One answer might be that our whole existence as human beings

is based on our animal instincts. We are of course animals, and we have evolved over the hundreds of years to be what we are today. The foundation of our basic human life would probably have to be the cerebral cortex. It basically does everything we need done to survive on a daily basis: governs body temperature, heart beat, respiration, when we have to eat, sleep, our sexual drive, and it also triggers our aggression. If we were to remove it, or even damage the cerebral cortex, we would be in fact killing our very existence. One very interesting thing about the cerebral cortex is that it is automatic system, meaning it functions without us knowing it. There are three parts of the brain: first is the Brain Stem, then the Hypothalamus, and the Pituitary System. The brain stem is

basically an extension of the spinal cord. The hypothalamus contains both the very important Limbic System and the chemical Melatonin, which is most usually released at night. The pituitary gland releases a variety of hormones, it controls many aspects of body function. Pat Moore is a female that suffers from severe winter depression. During the winter time, she is very depressed, she is throughly disgusted of herself, she cry frequently, she tends to stay away from people, sleeps a great deal, and just basically stops all normal activity. She has difficulty starting different tasks, and if she ever does start them, she never finishes. She doesn’t see a future at all for herself. The handicap she has completely interferes with her ability to function as a normal human. She also

explained that she felt like a bear, she went to sleep all winter, but then when summer hit, she was like a butterfly, she had all this energy, the will to go out and do things. So one day Pat went and participated in an experiment. The object was to try to rid the depression from her. So they set up huge flourescent lights in her living room, and for 3 hours a day she sat in front of the lights. After a short while of this, there was a drastic change. Pat Moore almost seemed like a completely new person. She had lots of energy, she started writing, reading, painting, and lots of other things she loved to do. She is very grateful of this, and we are too. Now we understand that the lack of light will make us depressed and it will make the world seem to drag on forever. Another way

to get rid of depression would be also sleep. The less sleep you get, you usually lose your depression. One thing is though that sleep is only a temporary changer. There are some drugs that you can take to get rid of depression, but they may take as long as several weeks before the effects are seen, but when it does kick in, the change is for good. Our brains are closely linked to nature. The beat of the earth is almost like the beat of our brain, we do everything hand in hand. One of the best times the see changes taking place in our brain would be at night time when we are sleeping. We sleep almost at ninety minute intervals. One of these intervals is realm, or the time when we dream. During this time, we can notice rapid eye movements, the brain is at its peak with activity.