Emergence is when micro-level complex systems that are far from equilibrium (thus allowing for the amplification of random events) self-organize (cre… - Michael S. Gazzaniga

Adding to our understanding of why the brain seems undisturbed by disconnections was not only the notion that it was, in a sense, sending half its decisions into the realm of the unconscious; it was also the discovery of the “interpreter.” This special left brain system kept note of all the behaviors that resulted from the many mental systems. It appeared to be the surveillance camera on our behavior, which, of course, was the evidence that a mental or cognitive act had occurred. The interpreter not only took note; it tried to make “sense” out of the behavior by keeping a running narrative going on about why a string of behaviors was occurring. It is a precious device and most likely uniquely human. It is working in us all the time as we try to explain why we like something or have a particular opinion, or rationalize something we have done. It is the interpreter device that takes the inputs from the massively modularized and automatic brain of ours and creates order from chaos. It comes up with the “makes sense” explanation that leads us to believe in a certain form of essentialism, that is, that we are a unified conscious agent. Nice try, interpreter!

There was another major phase of split-brain research where we studied the patients as a way of getting at the other questions very much alive in neuroscience, everything from questions about visual midline overlap to spatial attention and resource allocations. At this point the split-brain patients provided a way of examining cortical-subcortical relationships, and other matters.

It was also the test that produced the most astounding observation of all. The left, talking brain didn’t seem to miss the right brain, and vice versa. It didn’t just not miss it — it didn’t even remember it or the functions it had performed, as if the right hemisphere had never existed. For me, this phenomenon is the single most important fact students of mind/brain research must take into account.