"Ghost" sightings correlated to EM fields
Ghostly magnetism explained
By Arran Frood
British psychologists have published research findings which they believe go some way towards explaining why people think they see or feel ghosts.
Hampton Court: A link between haunted rooms and field variation
The study - in which hundreds of volunteers were taken around two allegedly haunted locations - found that people reported having more unusual experiences in the specific places at each location which are considered most haunted.