For the Baader–Meinhof Gang, see Red Army Faction.
The frequency illusion (also known as the Baader–Meinhof phenomenon) is a cognitive bias in which a person notices a specific concept, word, or product more frequently after recently becoming aware of it.
The name "Baader–Meinhof phenomenon" was coined in 1994 by Terry Mullen in a letter to the St. Paul Pioneer Press.[1] The letter describes how, after mentioning the name of the German terrorist group Baader–Meinhof once, he kept noticing it. This led to other readers sharing their own experiences of the phenomenon, leading it to gain recognition. It was not until 2005, when Stanford linguistics professor Arnold Zwicky wrote about this effect on his blog, that the name "frequency illusion" was coined.[2]
^"Sunday Bulletin Board: 'I have dubbed it The Baader-Meinhof Phenomenon'". Twin Cities. 1994-10-16. Retrieved 2023-06-11.
^Zwicky, Arnold (7 August 2005). "Language Log: Just between Dr. Language and I". itre.cis.upenn.edu. Retrieved 2023-03-28.
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