Source : Webster's Revised Unabridged Dictionary (1913)

Autosuggestion \Au`to*sug*ges"tion\, n. [Auto- + suggestion.]
   (Med.)
   Self-suggestion as distinguished from suggestion coming from
   another, esp. in hypnotism. Autosuggestion is characteristic
   of certain mental conditions in which expectant belief tends
   to produce disturbance of function of one or more organs.

Source : WordNet®

autosuggestion
     n : hypnosis induced by yourself [syn: {self-hypnosis}, {self-suggestion}]