Forget about crowd size. New Research The amygdala, a part of the brain that plays a key role in identifying and dealing with potential threats, was found to be slightly larger in conservatives compared to liberals.
“The amygdala is slightly larger simply because the brain [the] “These could be a desire for safety, a reduction in uncertainty and threat, or a more careful processing of negative stimuli,” study author Diamantis Petropoulos Petalas told the Post.
Amygdala Petropoulos says the difference between conservatives and liberals is the size of a peanut in the shell and the size of a sesame seed.
The larger amygdala may be due to genetics, environment or perhaps a combination of both, he added, and is likely related to “a greater tendency to understand danger.”
Petropoulos' research was published Cell Press Journal iScience ThursdayWidely shared 2011 University College London survey The event was criticized for having only 90 participants.
Petropoulos and his team looked at brain scans of 928 Dutch adults aged 19 to 26.
The researchers combined the brain data with insights into participants' politics: They asked questions about their social and economic identity, including where they place themselves on a sliding scale from progressivism to conservatism and which political party they support.
Other questions touched on their social and economic ideologies, including their stance on women's and LGBTQ rights, income inequality, and profit sharing.
“We see ideology as a complex, multifaceted product that includes different attitudes toward social and economic issues, as well as affiliations with progressive or conservative ideals,” said Petropoulos, a political psychology and neuroscience researcher at the American University of Greece. “It's not just a matter of left or right.”
Petropoulos said the team did not expect to be able to replicate the results of the 2011 study.
Oscar Winners Colin Firth He is a co-author of the study. it is “The first neuroscientific evidence of biological differences between liberals and conservatives”
The study found that compared with liberals, conservatives tend to have a larger amygdala and a smaller anterior cingulate cortex (ACC), which is involved in error detection, impulse control, and emotion regulation.
These discoveries made headlines in 2011: “Brain study finds conservatives are more fearful” The next piece is titled “Science Says Conservatives are Cowards,” and discusses the role of the amygdala in processing fear and anxiety.
“It's not surprising that findings like this have been 'falsified' to stoke polarization,” Petropoulos told the Post. “The same study found that ACC is larger among liberals, but I don't think that finding made as many headlines. I guess a headline that says liberals are big on false positives doesn't sell well.”
In the new study, Petropoulos and his colleagues found no consistent link between politics and ACC.
The researchers found a link between conservatism and gray matter volume in the amygdala, but this link was three times weaker than in the 2011 study.
The team called for further research into the “complex relationship” between brain structure and political beliefs.
