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The results of the study showed that laughter in children is very different in adults: children laugh at the same time during inspiration and exhalation, unlike adults who laugh especially during the # 39; expiration.
Desa Sutter, psychologist and associate professor at the University of Amsterdam in the Netherlands, said that children so laughs are like key non-human organisms, such as chimpanzees.
Sutter, with a team of specialists, recorded the laughs of 44 infants and children aged 3 to 18 months, then listened to and analyzed by more than 100 psychologists and specialists.
The findings concluded that young children usually laugh when inspired and exhaled, as with key non-human organisms, such as chimpanzees.
"Adults sometimes laugh when inhaled, but the percentage is significantly different from that of infants," says Sutter, "The laughter changes with age, while the inhalation is gradual and unsurprising" said Sutter.
Sutter explained that until now, nothing justified human laughter when one exhaled, unlike other members of the main group of organisms. This is probably due to the sound control that humans develop when they learn to speak.
The results of the study were presented at the 76th meeting of the American Acoustic Society, held in Canada from November 5th to 9th.
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The results of the study showed that laughter in children is very different in adults: children laugh at the same time during inspiration and exhalation, unlike adults who laugh especially during the # 39; expiration.
Desa Sutter, psychologist and associate professor at the University of Amsterdam in the Netherlands, said that children so laughs are like key non-human organisms, such as chimpanzees.
Sutter, with a team of specialists, recorded the laughs of 44 infants and children aged 3 to 18 months, then listened to and analyzed by more than 100 psychologists and specialists.
The findings concluded that young children usually laugh when inspired and exhaled, as with key non-human organisms, such as chimpanzees.
"Adults sometimes laugh when inhaled, but the percentage is significantly different from that of infants," says Sutter, "The laughter changes with age, while the inhalation is gradual and unsurprising" said Sutter.
Sutter explained that until now, nothing justified human laughter when one exhaled, unlike other members of the main group of organisms. This is probably due to the sound control that humans develop when they learn to speak.
The results of the study were presented at the 76th meeting of the American Acoustic Society, held in Canada from November 5th to 9th.