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Why do people laugh when they get tickled?

        Science | Emotions

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  • BBC. "Nervous system layer." Accessed June 3, 2009.
  • Blackmore, Sarah-Jayne. "Why can't a person tickle himself?" Scientific American. August 4, 2003.
  • Mintz, Thomas MD. "Tickle - the itch that moves." Psychosomatic Medicine. 1967.
  • Provine, Robert R. "Laughing, tickling, and the evolution of speech and self." Current Directions in Psychological Science. 2004.
  • Queen's University. "The science of tickling." January 19, 2006.
  • Tierney, John. "What's so funny? Well, maybe nothing." New York Times. March 13, 2007.
  • Uhlig, Robert and Derbyshire, David. "Proof that you can't fool your brain with a tickle." Telegraph. September 11, 2000.
  • Yoon, Carol Kaesuk. "Anatomy of a tickle is serious business at research lab." New York Times. June 3, 1997.