This article from Wired documents a study examining whether scientists could replicate and produce "paranormal" feelings and perceptions commonly associated with "haunted houses". They were remarkably successful: about 60 out of 79 participants reported "dizziness, tingling, disembodiment, dream-remembrance and “a presence. Several felt sexually aroused." The article doesn't mention whether they used a control group or not (hope so!).
Black Plague: Newscast from the Past
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