autosuggestion vs hypnotic suggestion

autosuggestion

noun
  • An instance of suggesting a thought to oneself. 

  • An autosuggest feature. 

  • The practice of suggesting thoughts to oneself, as in autohypnosis. 

hypnotic suggestion

How often have the words autosuggestion and hypnotic suggestion occurred in a corpus of books? (source: Google Ngram Viewer )