The Split Brain
Two Brains, Two Minds, and the Origin of Thought
There is now indisputable evidence that the right brain is associated with a highly developed form of mental processing that can be loosely referred to as an unconscious awareness. From the perspective of the left brain and conscious mind, this dimension appears to represent the unconscious per se because it is nonverbal. As compared with the conscious mind, which is heavily influenced by language and verbal thoughts, the right-brain mental system does not rely on linguistic forms of analysis; thus, it is quite difficult for the language-dependent left brain to be conscious of what is occurring in the other half of the cerebrum. That the right brain, through the right frontal lobe, exerts inhibitory influences on information reception within the left brain only adds to its influences outside conscious control.
Moreover, because of its specialized abilities, the left brain cannot always understand or even recognize actions, memories, and ideas produced by the right (and vice versa) so that, again, they appear to be unconsciously mediated. The reason is, partly, that the left brain prefers to consider things linguistically and in order, one at a time, rather than simultaneously and all at once as the right hemisphere does, and is thus