New work led by Roza Kamiloglu, a psychologist at the Free University of Amsterdam, provides evidence that there are just two primary types of laughter: one generated when people find something funny ...

She is well-known for her TED Talk called, "Why We Laugh." We asked her to explain the difference between the types of laughter we use in social situations. Following is a transcript of the video.

Researchers at the University of Amsterdam say both machines and humans can learn to tell the difference between different types of laughter and identify when it’s caused by tickling.

There's nothing quite like that yelp of laughter you emit when being tickled. Now, experts have confirmed that shrieks induced by tickling really do sound recognisably different to other types of ...