Can we tell someone’s cultural group from the way they laugh?

Can we infer someone's cultural group from their laugher, even when we do not know what they are laughing at? And what kind of laughter do we find most positive? A new study shows that our laughter gives us away. The study included Dutch and Japanese producers of laughter and listeners. Listeners could detect whether a laughing person is from their own or another cultural group by only hearing a brief laughter segment. Spontaneous laughter was rated as most positive by both groups.

from Relationships News -- ScienceDaily https://www.sciencedaily.com/releases/2021/11/211115165434.htm