John Hibbing, Kevin Smith, and John Alford are the authors of Predisposed: Liberals, Conservatives, and the Biology of Political Differences (Routledge, 2013). Hibbing is professor of political science and psychology at the University of Nebraska, Smith is professor of political science at the University of Nebraska, and Alford is associate professor of political science at Rice University.

Predisposed approaches the difference between liberals and conservatives from the perspective of physiology. Are we predisposed to certain beliefs or to one ideology or another? They answer emphatically “yes”. Those that call themselves liberals and conservative are biologically different in a host of ways that are deeply embedded in our biology.
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