Scientists ‘can tell from a brain’s response’ whether owner is left- or right-wing
Israeli study says political differences don’t just emerge when it comes to how we interpret reality around us; our brains actually ‘see’ different things depending on our politics
Israeli scientists say they are able to establish where people stand on politics by scanning their brains.
Researchers at Tel Aviv University used magnetic resonance imaging (fMRI), to measure brain activity on several dozen people — half of them right-wingers and half left-wingers.
They found that participants’ brain responses when watching political broadcasts predicted accurately whether each participant leant right or left.
And there was a very surprising element in where, exactly, the scientists saw the differences: It wasn’t in the so-called higher brain regions, which are responsible for interpreting the world. Rather, it was in the “lower” regions that work on a much more basic, primal level.
The differences between right-wingers and left-wingers were detected in the motor and somatosensory areas, meaning the parts of the brain that are active when we move or feel things with our senses.
“Just from the brain’s response in these primary sensory areas, we could tell if a certain individual was left- or right-wing,” said TAU psychologist Dr. Yaara Yeshurun, who conducted the study with her PhD student Noa Katabi. “It could even be done by examining an area of the brain that is responsible for seeing or hearing.”
The research was conducted just before Israel’s November election with a sample of politically active voters, and published in the January edition of the peer-reviewed journal Neuroscience.
Yeshurun told The Times of Israel that, “Until now, it was understood that political differences occur when people interpret the world differently using higher regions of their brain such as the pre-frontal cortex,” referring to the area that is responsible for complex cognitive tasks
Just from the brain’s response in these primary sensory areas, we could tell if a certain individual was left- or right-wing
“But we see signs of political differences in very basic regions, and my belief is that people are not only interpreting them differently but also perceiving them differently.”
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