The Split Brain in Man The effects of a split-brain operation are most dramatic when sensory information is limited to a single hemisphere because when the corpus callosum is cut, the brain is divided into two separate hemispheres, the right and the left. R.Sperry and M.Gazzaniga show the dramatic effects in various experiments conducted. In one such experiment, lights were flashed on the left visual field of a split-brain person; the person reported …showed first 75 words of 768 total…

…showed last 75 words of 768 total…as the left hemisphere contains speech. On the other hand, when the nude picture of the woman was presented to the right hemisphere the patient said she did not see anything but then immediately after a sly smile spread over here face and she began to chuckle. The two hemispheres both showed an emotional response and this showed that in a spilt-brain situation they were really dealing with two brains able to have separate emotions.