Psychology of the Strange Psychology of the Strange

The Haunted Room Experiment: Infrasound, Ghosts, and the Power of Suggestion

Aug 11, 2026 · 31m

Summary

Host Tara Perrault explores the psychology behind haunted experiences, examining Vic Tandy’s discovery of infrasound and Michael Persinger’s “God Helmet” experiments. The episode details Chris French’s “Haunt Project,” which found that environmental stimuli like infrasound did not cause paranormal sensations; instead, suggestibility and prior expectations drove the reports. Ultimately, the episode argues that the brain manufactures these eerie feelings through misattribution of bodily sensations in ambiguous, sensory-deprived environments.

Topics discussed

Introduction: The Haunt Project experiment and participant experience Victor Tandy's discovery of infrasound and the 'ghost in the machine' Michael Persinger's 'God Helmet' and electromagnetic fields The Haunt Project: Methodology, results, and the role of suggestibility Psychological mechanisms: Prediction, misattribution, and individual differences Critiques of the research and environmental factors in haunted locations Medical explanations: Carbon monoxide, mold, and the direction of causality Conclusion: Humility in paranormal research and final thoughts
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