Monday, 12 April 2004 11:54

Left and Right Wing Brains

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Left and Right Wing Brains

Researchers show that even in humdrum nonpolitical decisions, liberals and conservatives literally think differently. Exploring the neurobiology of politics, scientists have found that liberals tolerate ambiguity and conflict better than conservatives because of how their brains work.

In a simple experiment reported today in the journal Nature Neuroscience, scientists at New York University and UCLA show that political orientation is related to differences in how the brain processes information. Previous psychological studies have found that conservatives tend to be more structured and persistent in their judgments whereas liberals are more open to new experiences.

 

The latest study found those traits are not confined to political situations but also influence everyday decisions. The results show "there are two cognitive styles -- a liberal style and a conservative style," said UCLA neurologist Dr. Marco Iacoboni, who was not connected to the latest research.

Participants were college students whose politics ranged from "very liberal" to "very conservative."

They were instructed to tap a keyboard when the letter 'M' appeared on a computer monitor and to refrain from tapping when they saw a letter 'W'. The letter 'M' appeared four times more frequently than the letter 'W', conditioning participants to press a key in knee-jerk fashion whenever they saw a letter.

Each participant was wired to an electroencephalograph that recorded activity in the anterior cingulate cortex, the part of the brain that detects conflicts between a habitual tendency (pressing a key) and a more appropriate response (not pressing the key). Liberals had more brain activity and made fewer mistakes than conservatives when they saw a letter 'W', researchers said. Liberals and conservatives were equally accurate in recognizing the letter 'M'.

Researchers got the same results when they repeated the experiment in reverse, asking another set of participants to tap when a 'W' appeared. Frank J. Sulloway, a researcher at UC Berkeley's Institute of Personality and Social Research who was not connected to the study, said the results "provided an elegant demonstration that individual differences on a conservative-liberal dimension are strongly related to brain activity."

Analyzing the data, Sulloway said liberals were 4.9 times as likely as conservatives to show activity in the brain circuits that deal with conflicts, and 2.2 times as likely to score in the top half of the distribution for accuracy. Sulloway said the results could explain why President Bush demonstrated a single-minded commitment to the Iraq war and why some people perceived Sen. John F. Kerry, the liberal Massachusetts Democrat who opposed Bush in the 2004 presidential race, as a "flip-flopper" for changing his mind about the conflict.

Based on the results, he said, liberals could be expected to more readily accept new social, scientific or religious ideas. "There is ample data from the history of science showing that social and political liberals indeed do tend to support major revolutions in science," said Sulloway, who has written about the history of science and has studied behavioral differences between conservatives and liberals.

Lead author David Amodio, an assistant professor of psychology at New York University, cautioned that the study looked at a narrow range of human behavior and that it would be a mistake to conclude that one political orientation was better. The tendency of conservatives to block distracting information could be a good thing depending on the situation, he said. Political orientation, he noted, occurs along a spectrum, and positions on specific issues, such as taxes, are influenced by many factors, including education and wealth.

Some liberals oppose higher taxes and some conservatives favor abortion rights. Still, he acknowledged that a meeting of the minds between conservatives and liberals looked difficult given the study results. "Does this mean liberals and conservatives are never going to agree?" Amodio asked. "Maybe it suggests one reason why they tend not to get along."

Read 1166 times Last modified on Saturday, 21 February 2015 12:54
Rich Wermske

My pedigree and bona fides are published elsewhere. That said, I respect that a few may wish to learn more about the private person behind the writing.  While I accept I am exceptionally introverted (tending toward the misanthropic), I do enjoy socializing and sharing time with like-minded individuals. I have a zeal for integrity, ethics, and the economics of both interpersonal and organizational behavior.

The product of multi-generational paternal dysfunction, I practice healthy recovery (sobriety date December 11, 2001).  I am endogamous in my close personal relationships and belong to a variety of tribes that shape my worldview (in no particular order):

☯ I participate in and enjoy most geek culture. ☯ I am a practicing Buddhist and a legally ordained minister. I like to believe that people of other spiritual/faith systems find me approachable.  I am a member of the GLBTQA community -- I married my long-time partner in a ceremony officiated by Jeralita "Jeri" Costa of Joyful Joinings on November 18, 2013, certificated in King County, Seattle WA. We celebrate an anniversary date of February 2, 2002.  I am a service-connected, disabled, American veteran (USAF).  I am a University of Houston alumnus (BBA/MIS) and currently studying as a post baccalaureate for an additional degree in Philosophy and Law, Values, & Policy.  I am a retired Bishop in the Church of Commerce and Capitalism; the story arch of my prosecuting and proselytizing the technological proletariat is now behind me.  I am a native Houstonian (and obviously Texan).  At 50 years old, I am a "child of the sixties" and consider the 80's to be my formative years.

As I still struggle with humility, I strive to make willingness, honesty, and open mindedness cornerstones in all my affairs. Fourteen years of sobriety has taught me that none of "this" means a thing if I'm unwilling, dishonest, or close minded.  Therefore I work hard on the things I believe in --

  • I believe we can always achieve more if we collaborate and compromise.
  • I believe that liberal(ism) is a good word/concept and something to be proud to support.  The modern, systematic corruption of liberal ideas is a living human tragedy.
  • I believe in a worldview founded on ideas of liberty and equality. The pragmatism of this site and my journey is rooted in both classical and social liberalism.
  • I believe in democratic elections and institutions including a media free of commercial and governmental bias.  Liberty and equality perish when a society becomes uneducated and/or ill-informed.
  • I believe in diversity of life and ideas.  Life and ideas can only flourish when the gene pool is vast and abundantly differentiated.
  • I believe in advancing balance in civil, social, and privacy rights such that all of humanity is continuously uplifted.
  • I believe in separation of church (spirituality) and state (governance) -- with neither in supremacy nor subjugation.
  • I believe in private (real or tangible) property explicitly excluding ideas, knowledge, and methods; such non-tangibles, by natural law, being free for all humanity and emancipated at conception.

While change and the uncertainty of the future may be uncomfortable, I do not fear the unknown; therefore:

    • I believe I must be willing to make difficult choices, that those choices may not be all that I desire, and that such may result in undesirable (or unintended) consequences;
    • I believe we must be willing to make mistakes or be wrong; and I am willing to change my mind if necessary.
I undertake to abide the five precepts of Buddhism; therefore:
  1. I believe it is wrong to kill or to knowingly allow others to kill.
  2. I believe it is wrong to steal or to knowingly allow others to steal.
  3. I believe in abstention from sexual misconduct.
  4. I believe it is wrong to lie or to knowingly allow others to lie.
  5. I believe in abstention from non-medicinal intoxicants as such clouds the mind.

Suicide, major depression, borderline personality, and alcoholism are feral monsters ever howling at my doorstep. However, despite my turbulent and tragic past, rare is the day where I have to rationalize, defend, or justify the actions of that person I see looking back at me in the mirror...

Website: www.wermske.com
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