What's going on in the brain when you can't agree with the other person's opinion?
When there is disagreement, persuade the other partyBe able to get consentIs a difficult task. New research observes what is happening in the brain when there is disagreement, from which researchers derive "points to persuade the other."
Confirmation bias in the utilization of others' opinion strength | Nature Neuroscience
Here's what happens in the brain when we disagree
University of London psychologists Andreas Capez and Thali Charlotte have experimented with how the human brain responds to "disagreement".
The researchers evaluated the real estate of each other as a pair of 42 volunteers, and received money based on the evaluation. At that time, researchers record the brain activity of the subject with a brain scan. The two subjects in the pair can see how each other evaluates the property and spends money over the glass partition.
In the experiment, volunteers basically spent as much as they were confident in their real estate appraisal. And when the real estate prices of the two were the same, their confidence increased and they tended to spend a lot. At this time, it was confirmed that the brain activity of one volunteer was affected by the “confidence” of the other volunteer. In particular,"Sour grapes"As represented byCognitive dissonanceIs said to be related toPrefrontal cortexWas influenced by the confidence of the opponent. If one is confident, the other is more confident.
However, when there was disagreement, the brain was less sensitive to the opponent's opinion. If they disagree, then the prefrontal cortex will no longer be affected by their confidence. As a result, when partners with different opinions are confident, they are not affected by their confidence, whether or not their opinions are correct. Regardless of whether the partner was confident in their opinion or not, the result of "the brain is not affected" was the same.
By testing the volunteers' memories and seeing if they remembered their reputation and stakes, it was proven that this was not "the volunteer did not pay attention to the other". Researchers believe that if there is a conflict, one will think the other is "wrong," and will no longer find importance in that opinion.
Even at the social level, the above phenomena can be confirmed. For example, in the last decade, climatologists have repeatedly stated that "climate change is caused by humans." But,Pew Research CenterResearch shows that the number of Republicans who believe in this opinion has fallen over the same period. Of course, there are multiple reasons for this phenomenon, but researchers say it also involves how other people's opinions affect the brain.
The first thing to remember when you have a conflict of opinion is that you don't bring a lot of evidence that you're doing the wrong thing correctly. Instead, starting from the point where you agree with the person on the agenda allows you to focus on the discussion itself rather than being considered a "controversy" from the beginning.
For example, when there is a conflict with someone who thinks "vaccines are associated with autism", providing scientific evidence of vaccination cannot change their opinion. Rather, focusing on the fact that vaccines can save children from deadly illnesses makes it easier to get consent. actually,In the experimentIt has been shown that this persuasion has tripled the will to vaccination.