Just in time for Halloween, we talk about the psychology of strange stuff – including ghostly visitations, alien abductions, ESP, and more – with Chris French, PhD, head of the anomalistic psychology unit at Goldsmiths, University of London. Dr. French discusses how psychological explanations such as sleep paralysis and inattentional blindness could underlie many people’s paranormal experiences, and the role of skepticism and science in testing and evaluating paranormal claims.