2024-09-19 17:46:21
A new study published in the Cell Press iScience journal explains differences in the brain structure of left- and right-wing voters. The study wants to imitate a previous study from 2011 and based on 90 high school students from the United Kingdom, and their brain images show that progressive voters and non-voters have differences in their brains.
The study was carried out by scientists from the University of Amsterdam. The team tested the results with a large and very diverse group of participants, analyzing MRI brain scans of 928 people aged 19 to 26 with educational levels and representative political identities of Dutch residents.
We have done MRIs that only provide information about the anatomy of different brain areas, and researchers believe that future work will need to add information about the functional connections between the amygdala and different parts of the brain.
The results prove that the size of the human amygdala is related to them political opinion. Anatomical differences in the amygdala and anterior cingulate cortex (ACC) change depending on a person’s economic and social background, the study acknowledges.
The Netherlands has a pluralist political system and the study wanted to compare its effect on the brain, and analyze the ‘thinking’ of the participants from different economic issues. To do this, they have taken it out questionnaire with questions about social and economic identitywhich political party they identify with, social and economic opinion, etc. According to the UK study, researchers found an association between depression and gray matter volume in the amygdala, although weaker than in the 2011 study.
“Fiorino has a multi-party system, with different parties representing many ideas, and we see it A very good positive correlation between the political opinion of the parties and the amygdala size of that person,” he explained.
The relationship between amygdala size and conservatism also depends on the political party with which one identifies. For example, those who identify with the socialist movement – with leftist economic policies but more conservative social values - have on average more gray matter in their amygdala than those from other progressive groups.
However, not the original research, andThe team found no association between conservatism and low gray matter size in ACC.
The analysis expanded to examine possible associations between political identity and other brain regions, thus discovering a positive association between gray matter volume in the right fusiform gyrus and economic and social security.
“These areas have to do with facial recognition, so it makes sense that they are involved when you think about political issues, since these often remind us of the political figures who represent the rhetoric on those issues, ” he said. “Just the memory of a politician’s face can make the fusiform gyrus light up a little.”
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