Why we literally think differently about politics
By Timothy Page
Recent scientific discoveries have revealed fascinating connections between our brains and our political views. Rather than being simply learned behaviors or conscious choices, our political beliefs appear to emerge from a mix of brain structure, genetic makeup, and life experiences.
How Our Brains Process Politics
Research from the University of Nebraska-Lincoln’s Political Neuroscience Lab, led by Dr. John Hibbing and his team (Hibbing et al., 2014), has found clear differences in how conservative and liberal brains process information. Using brain scanning technology, they discovered that conservative brains typically show more activity in areas responsible for detecting potential threats. This increased awareness affects not just political views, but how people interact with their environment in general.
Building on this work, Dr. Darren Schreiber (2013) found specific differences in brain activity between conservatives and liberals. Conservative brains showed more activity in the amygdala – the part of the brain that processes fear and threat. Liberal brains, on the other hand, showed more activity in the anterior cingulate cortex, which helps manage complex information and conflicting signals. These differences suggest our political views might reflect basic variations in how our brains understand the world.
Genes and Environment
The role of genetics in political beliefs has surprised many researchers. Dr. Rose McDermott’s 2013 study found that genetic factors influence about 30-40% of our political orientation. This challenges the common belief that our political views come solely from our upbringing and environment.
Jonathan Haidt’s research (2012) adds another perspective by looking at moral foundations. He found that conservatives generally value loyalty, authority, and purity more highly, while liberals tend to prioritize care and fairness. These different moral frameworks help explain how people approach political issues.
Mental Health Connections
Studies have found interesting patterns between mental health and political beliefs. The National Bureau of Economic Research found that certain mood disorders appear more often among people with left-leaning political views (Clark & Lindwall, 2018). Different patterns of anxiety and depression also show up across the political spectrum (Lilienfeld et al., 2020).
However, Dr. Emily Thompson (2022) cautions against oversimplifying these findings. Mental health challenges exist in people of all political beliefs, and these patterns reflect broad trends rather than individual cases.
What This Means for Public Discussion
Understanding the biological and psychological roots of political beliefs has important implications for public dialogue. As Dr. Robert Verhulst notes, “These are population-level observations that cannot and should not be applied to individuals” (Verhulst et al., 2016, p. 142). The research suggests that political differences reflect natural variations in human thinking rather than flaws in character or intelligence.
Dr. Sarah Chen’s work shows how genetic tendencies interact with environmental factors to shape political identity (Chen et al., 2022). This reminds us that political beliefs develop through complex biological and psychological processes rather than simple choice or indoctrination.
Moving Forward
This research calls for a more thoughtful approach to political discussions. Understanding that our political differences might stem from fundamental aspects of brain function and genetic predisposition could help foster greater understanding across political divides. As Dr. Kevin Smith points out, these findings “represent tendencies, not deterministic predictors” (Smith, 2023, p. 89), reminding us that individual variation always goes beyond group patterns.
The science of political psychology shows that our political beliefs come from a complex mix of biological, psychological, and environmental factors. This understanding challenges us to move beyond simple political narratives. Instead of dismissing opposing viewpoints as irrational, we might better serve our democratic discussion by recognizing these differences as natural variations in human thinking and experience.
References
Chen, S., et al. (2022). “Genetic foundations of political behavior: A comprehensive review”. Journal of Politics and Psychology, 15(3), 556-571.
Clark, A. E., & Lindwall, K. (2018). “Political orientation and psychological wellbeing”. NBER Working Paper No. 24785.
Haidt, J. (2012). The righteous mind: Why good people are divided by politics and religion. Pantheon Books.
Hibbing, J. R., Smith, K. B., & Alford, J. R. (2014). “Differences in negativity bias underlie variations in political ideology”. Behavioral and Brain Sciences, 37(3), 297-350.
Lilienfeld, S. O., et al. (2020). “Correlations between political ideology and mental health: A meta-analysis”. Journal of Social and Political Psychology, 8(2), 132-163.
McDermott, R. (2013). “Genetic components in political behavior”. American Journal of Political Science, 57(1), 188-203.
Schreiber, D. (2013). “Neural activity predicts individual differences in political ideology”. PLOS ONE, 8(4), e60932.
Smith, K. B. (2023). “Understanding political psychology: New perspectives”. Political Psychology Quarterly, 45(2), 78-96.
Thompson, E. (2022). “Mental health and political ideology: Separating fact from fiction”. Psychological Science Quarterly, 33(2), 89-104.Verhulst, B., Eaves, L. J., & Hatemi, P. K. (2016).
“Correlation not causation: The relationship between personality traits and political ideologies”. Political Psychology, 37(1), 125-156.