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Smiling does not necessarily indicate that a person is happy, according to a study. It is widely believed that smiling means we are happy, and it usually occurs when we are engaging with another person or group of people.
Researchers from the University of Sussex, U.K., show this is not always the case.
The way people often behave during one-to-one Human-Computer-Interaction (HCI) is as if they were socially engaged, researchers said. They asked 44 participants aged 18-35 to play a geography quiz game consisting of nine difficult questions so that they often got the answer wrong. Seated participants interacted with a computer alone in a room while their faces were video recorded. After the quiz, the participants were asked to rate their subjective experience using a range of 12 emotions including ‘bored’, ‘interested’ and ‘frustrated’ Their spontaneous facial expressions were then computer analysed frame by frame in order to judge how much they were smiling based on a scale of 0 to 1.
“According to some researchers, a genuine smile reflects the inner state of cheerfulness or amusement,” said Harry Witchel from Brighton and Sussex Medical School (BSMS). “However, Behavioural Ecology Theory suggests that all smiles are tools used in social interactions; that theory claims that cheerfulness is neither necessary nor sufficient for smiling,” Mr. Witchel said. “Our study showed that in these Human-Computer Interaction experiments, smiling is not driven by happiness; it is associated with subjective engagement, which acts like a social fuel for smiling, even when socialising with a computer on your own,” he said.
Source : https://www.thehindu.com/todays-paper/tp-life/smiling-may-not-mean-youre-happy/article24920619.ece
