No. 53: Sep-Oct 1987
"12 male and 12 female volunteers were evaluated for their suggestibility before and after an approximately 15-min. exposure to either sham, 1-Hz or 4-Hz magnetic fields that were applied across their mid-superior temporal lobes. During the field application, subjects were instructed to view a green light that was pulsating at the same frequency as the field and to imagine encountering an alien situation. Results were commensurate with the hypothesis that weak brain-frequency fields may influence certain aspects of imaginings and alter suggestibility."
(De Sano, Christine F., and Persinger, M.A.; "Geophysical Variables and Behavior: XXXIX. Alterations in Imaginings and Suggestibility during Brief Magnetic Field Exposures," Perceptual and Motor Skills, 64:968, 1987.)
Comment. The import of this paper is written between the lines of the Summary. One of the authors (M.A.P.) has long been investigating the possibility that UFOs, earthquake lights, and nocturnal lights are basically hallucinatory and are stimulated by natural variations in the magnetic field.