The difference in the ease of feeling of 'pain' may be 'presence of discrimination experience, not ethnic difference'
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In the United States in the era of slavery, the belief that 'black people hardly feel pain' was believed, and violent corporal punishment was sometimes given to black slaves. This myth was a superstition without scientific evidence, but the latest research has shown that there is actually a difference in the ease with which pain can be felt. It has also been determined that the cause may not be ethnic.
Neural and sociocultural mediators of ethnic differences in pain | Nature Human Behavior
https://www.nature.com/articles/s41562-020-0819-8
Scientists discover brain area that may make pain more intense for African Americans | Daily Mail Online
https://www.dailymail.co.uk/health/article-7963209/Scientists-discover-brain-area-make-pain-intense-African-Americans.html
Brain study identifies possible causes of ethnic pain disparities
https://medicalxpress.com/news/2020-02-brain-ethnic-pain-disparities.html
Past studies have reported that African Americans, Asians, and Hispanics are less resistant to pain than non-Hispanic whites, contrary to the stereotype `` Blacks feel less pain than whites ''. However, the mechanism was unknown.
A team from Elizabeth Rossin, a psychologist at the University of Miami, conducted an experiment to scan the brain of a person who actually feels pain using magnetic resonance imaging (fMRI) . A total of 88 people, 28 African-Americans, 30 Hispanic Americans, and 30 non-Hispanic Americans, participated in the experiment. The gender ratio was almost one to one.
In the experiment, first, four heat generating devices were attached to the participants' arms, and heat was applied to a maximum of about 118 degrees Fahrenheit (about 47 degrees Fahrenheit). I got it. The brains of participants complaining of pain were scanned with fMRI to compare and evaluate pain assessment and brain function.
The result of the first pain assessment test was that 'African-American participants are on average 5 points higher than those of other ethnic groups.' This means that African Americans are more painful than the other two ethnic groups.
However, the result of examining the response of the area called `` pain-related brain area '' composed of the anterior cingulate cortex , thalamus , insular cortex etc. by fMRI is `` almost the same for all ethnic groups '', and pain that differs between ethnic groups Was a contradictory result. Therefore, when comparing the results of the pain evaluation with the results of the 'Questionnaire for discrimination and prejudice experienced so far' conducted before the experiment, 'people who have experienced discrimination and prejudice complain of more pain' I understand that there is a tendency.
by Svetography
When the researchers looked at the differences in brain function in each ethnic group, they found that the ventral striatum and ventromedial prefrontal cortex of African Americans responded well to pain. On the other hand, Hispanic Americans and non-Hispanic Americans did not respond as well as African Americans.
Rosin said of the results: 'If you've been stressed early in life, Chronic pain It is known that it is easy to develop. For this reason, those who have experienced non-physical stress, such as discrimination and prejudice, may have their brains altered to respond more strongly to body pain. '
“It's a common misconception that the difference between ethnic groups is rooted in biological differences,” said Rosin, who notes that the differences found in this study are not ethnic but ethnic. The difference in pain was due to experience, not ethnicity.
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in Science, Posted by log1l_ks