Health and Medical News and Resources

General interest items edited by Janice Flahiff

Whether We Like Someone Affects How Our Brain Processes Movement

 

From the 5 October 2012 article at Science Daily

Hate the Lakers? Do the Celtics make you want to hurl? Whether you like someone can affect how your brain processes their actions, according to new research from the Brain and Creativity Institute at the USC Dornsife College of Letters, Arts and Sciences.

Most of the time, watching someone else move causes a “mirroring” effect — that is, the parts of our brains responsible for motor skills are activated by watching someone else in action.

But a study by USC researchers appearing October 5 in PLOS ONEshows that whether you like the person you’re watching can actually have an effect on brain activity related to motor actions and lead to “differential processing” — for example, thinking the person you dislike is moving more slowly than they actually are…

Past research has shown that race or physical similarity can influence brain processes, and we tend to have more empathy for people who look more like us.

In this study, the researchers controlled for race, age and gender, but they introduced a backstory that primed participants to dislike some of the people they were observing: Half were presented as neo-Nazis, and half were presented as likable and open-minded. All study participants recruited for the study were Jewish males.

The researchers found that when people viewed someone they disliked, a part of their brain that was otherwise activated in “mirroring” — the right ventral premotor cortex — had a different pattern of activity for the disliked individuals as compared to the liked individuals…

..

“These findings lend important support for the notion that social factors influence our perceptual processing.”

 

 

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October 10, 2012 - Posted by | Psychiatry, Psychology | , , , , , , , , ,

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