Länk - Guide till masshysteri
Mass hysteria is typically called 'mass sociogenic illness' in the research literature and was the subject of a fascinating 2002 article by sociologist Robert Bartholomew and psychiatrist Simon Wessley. This article was published in the British Journal of Psychiatry and charts the history of mass sociogenic illness from the middle ages to the present day.
Läs mer: Mind Hacks: 'Mass hysteria' closes school