Optimist?

A short update about the research source from the post below about Optimism or Pessimism:  The Medical Research Council and Welcome Trust helped support the research.  There have been quite a few studies within the past two years.  One, University of Cambridge Behavioral and Clinical Neuroscience Institute said, "Our results suggest that serotonin plays a critical role in social decision-making by normally keeping aggressive social responses in check."  "Serotonin, is a neurotransmitter whose presence or absence predispose us to feel buoyant or depressed."

One of the articles appeared in Science Express in June, 2008.  Authors included:  M.J. Crockett; L. Clark; T. W. Robbins; University of Cambridge, G. Tabibnia; M.D. Lieberman; University of California, Los Angeles.

Michael J. Fox referred in his show to a doctor (didn't catch the name) who identified genetic markers of people who have increased serotonin output and are born optimistic.  He said, "There is a second part where you are given a series of images, one horrific and one benign or sentimental, and depending on how you respond, it is further proof.  I was attracted to positive images."