Statement of Purpose I'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've also wondered why it's so difficult to do basic tasks with your non-dominant hand. That's why I chose my topic: behavioral science – your reaction to stimuli is higher on your dominant hand. Some reasons why I chose our hands as subjects. The first reason is that I have always found hand dominance 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 on each hand? Let's leave this to experiment. Hypothesis I believe that if I do a test by placing the test subjects' hands in ice water and asking the test subjects 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 better identify the character. We use our dominant hands more, which probably keeps the blood flow going. 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. Not using it would likely lower the amount of blood in your hand making it less sensitive. Research To find the correct answer to my hypothesis, I will have to conduct some research. I decided to search for some keywords like sensitivity and hand dominance: Behavioral Genetics There are many things you need to take into account 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 paper...... Nov. 2013. Web. Nov. 17, 2013. "Hand Dominance: A Trait That Influences Pain Sensitivity." NCBI. U.S. National Library of Medicine, December 31, 2009. Web. September 26, 2013. Johnson, Keith A., M.D., and J. Alex Becker, Ph.D. “The Whole Brain Atlas.” The Atlas of the Whole Brain. Np, 1999. Web. 17 November 2013. Kathi. "Gifted and highly sensitive to stimuli." Gifted and misunderstood socially awkward. Np, Feb. 6, 2013. Web. Sept. 26, 2013. Melucci, Nancy J., Ph.D. EZ Psychology. Hauppauge, NY: Barron's Educational Series, 2010. Print. Barron Educational Ser.Rachlin, Howard. Introduction to modern behaviorism. 3rd ed. New York: W. H. Freeman and, 1991. Print.Satcher, David, M.D., Ph.D. “Mental Health: A Report of the Surgeon General.” Surgeon General's Mental Health Report Chapter Two: Overview of Etiology: The Genetics of Behavior and Mental Illness. Np, nd Web. November 17. 2013.