Infrasound (audio frequencies below normal human hearing) has been investigated as a possible cause of paranormal-seeming effects.
Hauntings & Apparitions
In recent years, a variety of anomalous mental phenomena have been noted that appear to be triggered by crisis relating to danger, death and bereavement. Research into these phenomena has gathered momentum in the last decade, as it becomes clear that the prevalence rate across categories is substantial.
Attempts have often been made to catch paranormal events on film and video. As proof of their occurrence, such images are usually vulnerable to claims of misinterpretation, poor practice or fraud.
Published in 1894, this book by a leading member of the newly founded Society for Psychical Research is one of the best available overviews of nineteenth century ESP literature.
Describes explorations by NDE researcher Raymond Moody of a mirror-gazing technique used by ancient Greeks to contact the dead, here used for therapeutic purposes.
Mid-nineteenth century poltergeist case, in which a Swiss family was tormented for weeks by loud knocks and raps, furniture being hurled about, doors and windows slamming, and ghostly shapes and footsteps.
Overview of non-university organizations that carry out psi research in the UK, including the Ghost Club, ASSAP and Parascience.