http://www.umich.edu/news/?Releases/2005/Feb05/r020105Positive emotions like joy and humor help people "get the big picture," virtually eliminating the own-race bias that makes many people think members of other races "all look alike," according to new University of Michigan research.
"Negative emotions create a tunnel vision," said U-M psychology researcher Kareem Johnson. "Negative emotions like fear or anger are useful for short-term survival when there's an immediate danger like being chased by a dangerous animal. Positive emotions like joy and happiness are for long-term survival and promote big picture thinking, make you more inclusive and notice more details, make you think in terms of 'us' instead of 'them.'"
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Subjects who watched the comedy tested for having much higher positive emotions, while those who saw the horror video had far more "negative" emotions. In a testing phase, more images flashed by and they were asked to push buttons to indicate whether they'd seen the pictures earlier. Those in a positive mood had a far greater ability to recognize members of another race, while their ability to recognize members of their own race stayed the same.
The researchers conclude that positive emotions bring with them a "broadening effect" that helps people see a bigger, broader picture of the world around them.