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   Knismesis and gargalesis
   Knismesis and gargalesis are the scientific terms, coined in 1897 by psychologists G. Stanley Hall and Arthur Allin, used to describe the two types of tickling. Knismesis refers to the light, feather-like type of tickling. This type of tickling generally does not induce laughter and is often accomp...
   Found op http://en.wikipedia.org/wiki/Knismesis_and_gargalesis
   
   

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