paramnesia vs speculative fiction

paramnesia

noun
  • An inability to distinguish between real memories and dreams or fantasies 

  • An inability to remember the meaning of common words 

speculative fiction

noun
  • A class of fiction involving fantastic, supernatural or futuristic elements, including fantasy, horror, and science fiction, dealing with worlds, themes, and characters not part of everyday life. 

  • A particular work belonging to this class. 

How often have the words paramnesia and speculative fiction occurred in a corpus of books? (source: Google Ngram Viewer )