My Skeptical Inquirer column about the purported links between EMF fields and ghosts is now online! Many ghost hunters, including the T.A.P.S. team on the television show Ghost Hunters, use EMF detectors to search for electromagnetic fields because they believe that intense magnetic fields can create hallucinations, which in turn might create the illusion of ghosts. The basis for this theory comes primarily from research done by a Canadian cognitive neuroscientist, Michael Persinger. He found that hallucinations (such as out-of-body experiences) could be triggered by stimulating specific areas of the brain with fixed wavelength patterns of high-level electromagnetic fields... You can read the rest HERE. You can find more on me and my work with a search for "Benjamin Radford" (not "Ben Radford") on Vimeo, and please check out my podcast Squaring the Strange!