More surprising were the results of the second phase of Myers and Sperry s experiment, during which the patch was transferred to each cat s other eye. The transfer of the patch had no effect on the performance of the intact control cats or of the control cats with either the optic chiasm or the corpus callosum transected; these subjects continued to perform the task with close to 100% accuracy. In contrast, transferring the eye patch had a devastating effect on the performance of the experimental cats. In effect, it blindfolded the hemisphere that had originally learned the task and tested the knowledge of the other hemisphere, which had been blindfolded during initial training. When the patch was transferred, the performance of the experimental cats dropped immediately to baseline (i.e., to 50% correct); and then the cats relearned the task with no savings whatsoever, as if they had never seen it before. Myers and Sperry concluded that the cat brain has the capacity to act as two separate brains and that the function of the corpus callosum is to transmit information between them.