Timeline for What do you call psychological diseases that affect many people at once (or many people of a society)?
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| Jun 8, 2015 at 9:27 | comment | added | Abdur Rahman | @MikeHunter Could you post this as a separate answer? Because a comment alone can not clarify that much. Thanks. | |
| Jun 8, 2015 at 9:25 | comment | added | user57832 | Folie a plusieurs is also known more prosaically as mass hysteria. The Wikipedia post for this is hilarious with many more examples. From Wiki, "Other names include collective hysteria or group hysteria — in sociology and psychology refers to collective delusions of threats to society that spread rapidly through rumors and fear. In medicine the term is used to describe the spontaneous manifestation of similar hysterical physical symptoms by more than one person." Aka contagion. See recent book by Jacob Cohen Contagious or Gladwell's Tipping Point or Harrison White on networks. | |
| Jun 8, 2015 at 8:52 | history | answered | Tushar Raj | CC BY-SA 3.0 |