Are you truly happy? Brain can tell
Mind that laugh! As the world celebrates International Day of Happiness Thursday, we can tell if people are truly happy just from their laugh. A study has shown how the brain can detect fake laughter and respond differently to a genuine one.
A researcher from the Royal Holloway, University of London, has found that there were clear differences between how our brains respond to genuine and fake laughter.
A study led by Carolyn McGettigan, from the department of psychology, recorded the brain responses of participants as they listened to the same people produce genuine laughter, caused by watching funny YouTube videos and forced laughter.
The participants who were unaware that the study was about laughter perception, demonstrated different neurological responses when they heard false laughter.
This suggested that the brains not only distinguish between fake and genuine laughter, but attempt to work out why fake laughter is not genuine, reported Science Daily.
"As we celebrate International Day of Happiness today (Thursday), it's fascinating to consider the way our brain is able to detect genuine happiness in other people," said McGettigan.
"Our brains are very sensitive to the social and emotional significance of laughter.
"During our study, when participants heard a laugh that was posed, they activated regions of the brain associated with mentalizing in an attempt to understand the other person's emotional and mental state.
"Indeed, some of the participants engaged parts of the brain that control movements and detect sensation. These individuals were more accurate at telling which of the laughs were posed, and which were real. This suggests that as listeners, 'trying out' how a laugh would feel if we produced it ourselves might be a useful mechanism for understanding its meaning," McGettigan said.
The International Day of Happiness was first observed by the UN General Assembly March 20, 2013 and acknowledged the importance of happiness in the lives of people around the world.
(Posted on 20-03-2014)
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