MAIN IDEA:

This book discusses a novel theory of human behavior and the functioning of the brain. In this theory the brain is considered, first and foremost, a tool to generate predictions about the environment and then use the sensory organs as secondary tools to adjust these predictions. Here is the author’s formulation:” Perception is now heavily shaped from the opposite direction, as predictions formed deep in the brain reach down to alter responses all the way down to areas closer to the skin, eyes, nose, and ears—the sensory organs that take in signals from the outside world. Incoming sensory signals help correct errors in prediction, but the predictions are in the driver’s seat now. This means that what we perceive today is deeply rooted in what we experienced yesterday, and all the days before that. Every aspect of our daily experience comes to us filtered by hidden webs of prediction—the brain’s best expectations rooted in our own past histories”. So human behavior is not reactive, but rather an active 4-step process: prediction–action-perception–correction rather than two steps: perception-action.

MY TAKE ON IT:

The approach to human brain information processing suggested in this book changes the understanding of this processing. So, the first step is to plan or build an internal abstract model of reality. The second step is to direct sensory organs to actively search for confirmation of this model while ignoring other information as irrelevant. Only when contradictory information becomes so overwhelming that it cannot be ignored does the brain implement the correction step.  This makes sense and explains many experimental results related to priming, such as the famous experiment with the “invisible” gorilla in the basketball game. It is an interesting approach, and it points to a very important human brain functionality: building predictive models. Actually, this approach goes back to the very beginning of cybernetics when the objective was to direct anti-aircraft fire based on the prediction of the future position of the targeted aircraft and an artillery shell directed to shoot it down. This was a super simple process fully within the computational functionality of contemporary electronics. Obviously, the complexity of the model built by human brains is much higher than the simple beginnings, but the sequence of processes is the same. At the top level of complexity, it nicely explains a phenomenon when highly educated people are prone to be much more protective of their beliefs, even if such beliefs are obviously incorrect. This is because the models of highly educated people are very sophisticated, built at high costs, and, therefore, much more difficult to replace than models of simpler people. Hopefully, the new understanding presented in this book will help promote the development of modification processes for individuals whose perception of the world is built on propaganda and distortions of reality. The success of such an endeavor could help achieve peaceful coexistence between people with different world views based on different and often seemingly contradictory facts.