Cryptaesthesia is just the same as extrasensory perception, and so why people need to use a long, scientific-looking, and hard-to-spell word like cryptaesthesia to describe it I don't know.
Unless it's that the cryptaesthesiasts* feel the need of every trick in the box to make themselves come over as sane and honest, natch.
Sunday Rest: cryptaesthesia. This word comes from the Greek word kruptos, hidden, from kruptein, to hide, plus the other Greek word anaisthēsia, an absence of sensation, from aisthēsis, feeling.
*This word doesn't show up anywhere on Google so I may have coined it. Cool.