Statement of PurposeI've always wondered why we cringe at nails on a chalkboard and not music, or why we can't swim in an icy pool . I also wonder why it's so difficult to perform basic tasks with your non-dominant hand. That’s why I chose my topic: behavioral science – your reaction to stimuli higher up on your dominant hand. Some reasons why I chose our hands as subjects. The first reason is that I have always found hand domination interesting. That and when I was younger I was left-handed and eventually became right-handed. Does this mean that my reactions to stimuli will be the same in each hand? Let's leave that to experiment.Hypothesis I believe that if I test by inserting the test subjects' hands into ice water and asking them how their hands feel, I can determine that our most sensitive hands would be our dominant hands. I also believe that if you "write" with one hand, the dominant hand will identify the character better. We use our dominant hands more, which likely maintains blood circulation. If you're like me and when you're writing something and you're cold, you sit on your hand or put it between your legs or something to keep it warm while your dominant hand is at work. Lack of use would likely reduce the blood level in your hand, making it less sensitive.ResearchTo find the right answer to my hypothesis, I will need to conduct some research. I decided to search for a few key words such as sensitivity and hand dominance: Behavioral Genetics There are many things you need to take into consideration when performing behavioral experiments. Twin studies are a good example. Studies are called monozygotic if they are identical twins and dizygotic if they are fraternal twins. This would be useful for testing... middle of article...... November 2013. Web. November 17, 2013. “Hand dominance: a characteristic affecting sensitivity to pain.” »NCBI. US National Library of Medicine, December 31, 2009. Web. September 26, 2013. Johnson, Keith A., MD, and J. Alex Becker, Ph.D. “The Whole Brain Atlas.” The Whole Brain Atlas. NP, 1999. Web. November 17, 2013.Kathi. “Gifted and very sensitive to stimuli.” Socially awkward and misunderstood overachievers. Np, February 6, 2013. Web. September 26, 2013.Melucci, Nancy J., Ph.D. Psychology EZ. Hauppauge, NY: Barron's Educational Series, 2010. Print. Barron's Educational Ser.Rachlin, Howard. Introduction to modern behaviorism. 3rd ed. New York: WH Freeman and, 1991. Print. Satcher, David, MD, Ph.D. “Mental Health: A Report of the Surgeon General.” » Surgeon Generals Mental Health Report, Chapter Two: Overview of Etiology: The Genetics of Behavior and Mental Illness. Np, and Web. November 17. 2013.