Well will we be born a Republican or Democrat, and someday the genes can do the voting. Seriously, another study looking at how complex the overall study can be. Serotonin seems to play a role as well as dopamine, but there's more to it than just these 2 elements. 
This is a first in the world of research on genomics. BD
In the Journal of Politics this past July, he identified variations of two genes that might influence the decision to vote. Both are involved in regulating a brain chemical called serotonin, known to affect mood. Last week, at the annual meeting of the American Political Science Association in Boston, he presented research with colleagues at Harvard Medical School and Virginia Commonwealth University suggesting a link between variations of one gene affecting the neurochemical dopamine, which can help sensitize us to new experiences, and a tilt toward liberal political ideology.
"Voting is a complex social behavior," Dr. Fowler cautions. "We expect there to be many genetic variables that affect voting."
Now, Dr. Fowler and other researchers are looking for genes that may shape the personality traits of a liberal or conservative state of mind. By eliminating four genes involved with oxytocin and estrogen, researchers at Rockefeller University in New York could make mice unable to tell friends from enemies.
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