Dopamine, It Does a Body Good

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Dopamine, It Does a Body Good

In class we have frequently discussed the I-function and how it relates to the body and the brain. Is the I-function a separate soul? Is it simply an extension of our DNA and genes? In addition, we have fretted over the I-function and its relationship to our behavior or personality. Where exactly the I-function is, we have also wondered. In this paper I will explore personality, the I-function and their relationship to genes and chemical changes that take place within the body. I will mainly look at how neurotransmitters affect overall happiness in an individual. How these chemicals are regulated by genes and by the environment, will also be questioned. Overall I will look at what makes us who we are. Are we simply programmed for life by our genes or do they even matter at all?

While searching the web I found many good articles which explained how neurotransmitters affect personality. In some cases norepinepherin can encourage quick emotional responses like anger and also discourage logical thinking, while serotonin can cause irritability and a lack of rational emotion. All of them can cause anger, anxiety, depression, insecure feelings, and fear. To find out what the characteristics of personality are, I found another site appropriate. It lists 16 types of personality that are controlled by various combinations of 4 dimensions: extrovert vs. introvert, sensor vs. intuitive, thinker vs. feeler, and judger vs. perceiver. You can see how some of these could be determined by neurotransmitters.

With happiness in particular, a group of psychologists describe it through the set-point idea. The set-point idea contends that there is a genetically determined mood level that can be nudged by life slightly upward or downward, but in the long run will stay about the same for each individual. Therefore, if you win the lottery or become a paraplegic, you will remain close to the same happiness level that you were always at. The 2 doctors say that about half of your sense of well being is determined by your set-point while the other by the sorrows and pleasures of life. By studying the activity in each prefrontal area, happiness and enthusiasm can be detected from worry and agitation. They tested 10 month old babies and then tracked them for several years and still found the measurements of their brain-wave patterns accurate. It was also discovered that an allele for part of the D4 receptor were related to the amount of

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