This is probably due to [[rACC]] and [[dACC]] tendencies, which causes the liberals to engage more in situational causes and conservatives to engage more in societal reasons.

Jost at al, summarizing a 50 years of research on the causes of conservatism had suggested that the two main casus of conservatism are fear and a feel of urgent<ref>[http://faculty.virginia.edu/haidtlab/jost.glaser.political-conservatism-as-motivated-social-cog.pdf Jost, J., Glaser, J., Kruglanski, A., & Sulloway, F. J. (2003). Political Conservatism as Motivated Social Cognition. Psychological Bulletin, 129(3), 339–375.]</ref>. These findings where partly supported by new evidences that comes from the emerging field of political-brain research.