The expression extrasensory perception or ESP was introduced by J.B. Rhine when he set up a parapsychology laboratory at Duke University in the 1930s. It was intended to cover mind to mind communication cases known as 'telepathy' (defined as non-sensory communication between separated individuals), 'clairvoyance' (non-sensory awareness of some scene or object) and 'precognition' (non-inferential awareness of some future event or state of affairs).