Hampton Court Palace, a British royal residence famous for intense ghostly encounters and reports of fainting tourists, became the setting for a significant psychological experiment in 2000. Psychologist Richard Wiseman from the University of Hertfordshire led the study to explore whether the mind acts as a powerful defense mechanism regarding supernatural beliefs. The location was chosen partly due to its long history of reported apparitions involving royalty and servants, as well as an incident in 1999 where two tourists fainted at the same spot.
Between May 26 and June 4, Wiseman recruited more than 1,000 volunteers who were divided into two primary groups based on their belief in ghosts. These participants were then placed into smaller mixed groups and given different reasons for their presence. One group was informed that ghost sightings had occurred at the site, while the other was told they were there to record the effects of palace restorations. The first group also received a map to mark any rooms where they felt something "strange" and to rate how much they believed a ghost caused the phenomenon.
The results, which aligned with Wiseman's curiosity about the power of positive or negative suggestion as noted by Guinness World Records, confirmed that belief played a crucial role. Participants who believed in ghosts reported significantly more anomalous experiences than skeptics and were far more likely to attribute these events to spirits. Furthermore, the specific suggestions given to the groups heavily influenced the number of unusual experiences reported, demonstrating the power of language in classifying such phenomena.
The investigation focused primarily on how humans react to "unexplainable" experiences rather than determining the actual existence of ghosts. Wiseman and his team concluded that while valuable information was gathered regarding human reactions to suggestion, the perception of these phenomena depends entirely on the individual exposed to the situation.
Sources: CNN Brasil.