Different psychological status in the two hemispheres of two split-brain patients

Questions of a psychological nature were presented to two split-brain patie nts from the California series encouraging each hemisphere to respond simul taneously and independently. The responses of both patients indicated that their hemispheres were responding independently. For the first patient, his right hemisphere appeared to be more disturbed than his left by childhood memories of being bullied. The right hemisphere of the second patient seeme d to regard himself more positively, but it also seemed to feel more negati ve emotions such as loneliness and sadness. We discuss the possible signifi cance of the findings.