Why can't anyone tickle (as in someone who is ticklish) themselves?

zbeckabee

"Brain scientists at the University College London have pinpointed the cerebellum as the part of the brain that prevents us from self-tickling. The cerebellum is the region located at the base of the brain that monitors our movements. It can distinguish expected sensations from unexpected sensations. An expected sensation would be the amount of pressure your fingers apply to your keyboard while typing. An unexpected sensation would be someone sneaking up behind you and tapping you on the shoulder. While the brain discards the sensation of typing, it pays a lot of attention to someone tapping on your shoulder." http://www.howstuffworks.com/question511.htm Feb 06 07, 7:17 PM

Narutowarrior

Because your body can tell your about to tickle yourself and your controlling your fingers(that's roughly putting it) Feb 06 07, 7:28 PM