http://www.allthelyrics.com/lyrics/death_by_chocolate/the_ls... (Yes, I know it's only a cover...)

    I fly to the land
    Where my hands can see
    And my eyes can walk
    And the mountains talk

    I hear with my knees
    Run with my nose
    Smell with my feet
    My mouth is a rose

Just as much modern tech is attributed to pop culture sci-fi (id est Star Trek), stuff like this make me wonder if the drug culture was also an influence...

EDIT: I'm surprised this discussion hasn't mentioned synesthesia yet, which is the "natural" precedent of senses misdirecting themselves in the brain.

http://en.wikipedia.org/wiki/Synesthesia