Human Perception of Moderate Strength Low Frequency Magnetic Fields

If humans cannot perceive even subliminally that they have been immersed in or removed from a 60 Hz. magnetic field of a few gauss strength, comparable with the maximal value to be found around domestic or ELF communication systems, then it becomes very improbable that these fields have deleterious effects. With whole body immersion in a large Helmholtz coil field, some few individuals demonstrate perception scores absolutely impossible by chance, but as they are tested with acoustically quiet sources and with. better and better isolation from auxiliary nonmagnetic clues, fewer and fewer individuals show significant perception and none develop the very high scores found for sensitive subjects in the open coil systems. With an acoustically sealed isolation cabinet now being tested, perception scores may approach negligibility.