This study was designed to investigate the effects of a steady, direct electromagnetic field on the behavior of rats. The performance of two groups, each consisting of six rats was compared on a series of generalization problems. Members of one group were exposed to a steady, direct electromagnetic field during the trials, while members of the other group were not.;It was concluded that exposure to a direct electromagnetic field alters the performance of rats on a task involving generalisation.;It was found that rate exposed to the electromagnetic field made significantly fewer errors than rats of a control group who were not exposed. This was interpreted to mean that the direct electromagnetic field changed the electrical activity of the brain. |