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Dual consciousness (or Dual mind / Divided consciousness) is a hypothesis or concept in neuroscience. It is proposed that it is possible that a person may develop two separate conscious entities within their one brain after undergoing a corpus callosotomy. The idea first began circulating in the neuroscience community after some split-brain patients exhibited alien hand syndrome (AHS), which led some scientists to believe that there must be two separate consciousnesses within the brain's left and right hemispheres in competition with one another once the corpus callosum is severed.[1]
The idea of dual consciousness has caused controversy in the neuroscience community. No conclusive evidence of the proposed phenomenon has been discovered.
- ^ Munevar, Gonzalo (2012). The Myth of Dual Consciousness in the Split Brain: Contrary Evidence from Psychology and Neuroscience (PDF). International Conference on Brain-Mind Proceedings. BMI Press.