My involvement in split-brain research was at first in collaboration with Justine Sergent in the lab of Nobel Prize winner Roger W. Sperry in California, but later independently there and elsewhere in the US and in Italy. The split brain led to fanciful ideas about the duality of the brain, with the left brain standing for logical thought and the right for intuition. This had political overtones - the left standing for the military-industrial establishment, the right for peaceful Eastern philosophies. These dichotomies have little neurological substance. Our work led to some reframing of the effects of splitting the brain, and indications that the minds of these patients were not as split as earlier work had indicated.