What kind of psychologists study houses with the same defining quality as the psychiatric hospital in the film Grave Encounters?
Grave Encounters:  The footage follows the crew of a paranormal reality television program who lock themselves in a haunted psychiatric hospital in search of evidence of paranormal activity as they shoot what ends up becoming their final episode. Haunted house:  Parapsychologists attribute haunting to the spirits of the dead and the effect of violent or tragic events in the building's past such as murder, accidental death, or suicide.
Parapsychologists