The dual brain theory claims that the two cerebral hemispheres of the brain may sense and react to the environment independently from one another and that as a result of emotionally traumatic experience, one half may dominate the other in order to reduce the traumatized hemisphere's exposure. In essence, the person has two minds.
This theory is an extension of split-brain studies of epileptic patients having the corpus callosum severed in order to reduce seizures, but it has recently began to be studied in patients who have experienced traumatic events without any kind of brain surgery. In essence, this theory can apply to anyone.
Studies of healthy people with intact corpora callosa also indicate differing abilities or emotional responses associated with the two hemispheres. Studies using the Wada test and others are cited. In addition the theory draws upon research by Werner Wittling, Stuart Dimond, Roger Drake, Patrizio Tessoldi, Edward Fouty and Stephen E. Levick.
Read more about Dual Brain Theory: History, Dual Brain and Psychology
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