Over the course of his life-long career in parapsychology, the late William Roll (the PRF's first research director) had conducted...

Although they've traditionally been associated with the pesky and mischievous actions of disembodied spirits, a good amount of...

Throughout his extensive career, the late William G. Roll (the PRF's first research director) had carried out a number of field...

Poltergeist disturbances are characterized by a series of short-lived anomalous physical occurrences (e.g., objects sporadically moving...