Extra-sensory perception (ESP)

The acquisition of information about, or response to, an external event, object or influence (mental or physical; past, present or future) otherwise than through any of the known sensory channels; used by J. B. Rhine to embrace such phenomena as telepathy, clairvoyance and precognition; there is some difference of opinion as whether the term ought to be attributed to Rhine, or to Gustav Pagenstecher or Rudolph Tischner, who were using the German equivalent aussersinnliche Wahrehmung as early as the 1920s. [From the Latin extra, “outside of,” + sensory]

Extra-sensory perception, or ESP, is the ability to acquire information by means other than the five main senses of taste, sight, touch, smell, and hearing. The term implies sources of information unknown to science. Extra-sensory perception is also sometimes referred to as a sixth sense (as in coming after the first five listed, which are considered the five "classical" senses). The active agent through which the mind is able to receive ESP impressions has been named psi.