What if belief in God and prejudice against immigrants could be altered by magnetic energy? That's the question researchers sought to explore in a study published Wednesday in the journal Social Cognitive and Affective Neuroscience. The "magnetic energy" comes in the form of transcranial magnetic stimulation (TMS), a noninvasive procedure that uses a metal coil to send pulses to the brain. By activating certain regions of the brain, doctors have used it for things like measuring the damage of a stroke or treating depression. These researchers sought ... to temporarily disable one part of the brain: the part that responds to threats. Shutting down the [posterior medial frontal cortex] - they theorized - would reduce the need to believe in God. A similar model was used to test group prejudice. In both cases, their predictions rang true. In the participants whose pMFC was temporarily shut down, 32.8 percent fewer expressed belief in God, angels, or heaven. Some 28.5 percent more displayed a positive response toward the immigrant who was critical of America, compared with the control group. The University of York's Keise Izuma says, "People often turn to ideology when they are confronted by problems."