t***hiness wrote:
"Amygdala size has been correlated with cognitive styles with regard to political thinking. A study found that "greater liberalism was associated with increased gray matter volume in the anterior cingulate cortex, whereas greater conservatism was associated with increased volume of the right amygdala." These findings suggest that the volume of the amygdala and anterior cingulate gyrus may be associated with an individual's ability to tolerate uncertainty and conflict.[86]" Wikipedia.
As JoyV says (but no references) it is a complicated matter. I don't know what the average size of an amygdala is, but there is a study that shows London cab drivers have larger amygdalas for (nonpolitrical)reasons that Joy suggests above. Perhaps there is no data on this or Joy would have shown it. Normal size is not an insignificant detail. Early last century, young children were evaluated for thymus size, and physicians thought that kids had what they thought were over large thymuses until they realized that their original sample size that they based their original measurements on came from a population of a******l kids who had under-sized thymuses and the large thymuses were the normal ones.
So bunk, maybe you ought to check things out for yourself before acccepting or rejecting other opinions. We are here to determine t***h, right? I am confident your amygdala is just fine, I wouldn't worry about it.
"Amygdala size has been correlated with cogni... (
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The larger sized amygdala of cab drivers would fit right in with what I said about pattern recognition. An experienced cab driver would certainly not logically solve how to negotiate every shift in traffic as it happens.
My post is not taken directly from any single abstract, but is my conclusions based on the findings of a number of studies. I first became interested after reading an article about differences in the brains of liberals and conservatives. I tracked down the study and read it. While I don't agree with their conclusions, and find the way they structured the study to be wanting; there is some good data to be found.
https://www.sciencedaily.com/releases/2013/02/130213173131.htmThen I sought out a more scientific abstract which didn't appear to be done with preconceived political bias.
https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3092984/And here is a study on the size differences of right and left amygdala, and other brain structures. While nothing in the study mentions political ideology, I noted that the articles regarding size differences of liberals vs conservatives described the same differences as this one for age.
https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3633516/ While this study was not focused on political ideology, it is very useful as it indicates a definite correlation between psychological differences in people and the differences in their amygdala.
https://www.ncbi.nlm.nih.gov/pubmed/28689329This article is not an abstract but an article written by a top pioneering neuroscientist regarding his work and the common misinterpretations.
https://www.psychologytoday.com/us/blog/i-got-mind-tell-you/201508/the-amygdala-is-not-the-brains-fear-centerWithin a Wikipedia article on the amygdala, I've copied out two snippets I find interesting. "Social interaction
Amygdala volume correlates positively with both the size (the number of contacts a person has) and the complexity (the number of different groups to which a person belongs) of social networks.[64][65] Individuals with larger amygdalae had larger and more complex social networks. The amygdala is responsible for facial recognition and allows others to respond appropriately to different emotional expressions.[66] They were also better able to make accurate social judgments about other persons' faces.[67] The amygdala's role in the analysis of social situations stems specifically from its ability to identify and process changes in facial features. It does not, however, process the direction of the gaze of the person being perceived.[68][69]
The amygdala is also thought to be a determinant of the level of a person's emotional intelligence. It is particularly hypothesized that larger amygdalae allow for greater emotional intelligence, enabling greater societal integration and cooperation with others.[70]"
And
"Political orientation
Amygdala size has been correlated with cognitive styles with regard to political thinking. A study found that "greater liberalism was associated with increased gray matter volume in the anterior cingulate cortex, whereas greater conservatism was associated with increased volume of the right amygdala." These findings suggest that the volume of the amygdala and anterior cingulate gyrus may be associated with an individual's ability to tolerate uncertainty and conflict.[86]"
So a larger amygdala allows for greater social interactions and is associated with conservatism. Of course that is extremely simplistic, but not inaccurate.
https://en.wikipedia.org/wiki/AmygdalaI can't remember where else I've read studies regarding the amygdala. I know there was another regarding size and age broken down into a number of age groups, yet not as in depth as the one I included. But I'm afraid I've misplaced the site.