The Cerebral Code: Thinking a Thought in the Mosaics of the Mind - Tapa dura

"Bill Calvin writes with elegance, economy, and authority. In "The Cerebral Code", he has solidly embedded his ideas in experimental neurophysiology and neuropharmacology, deriving from his decades in the laboratory. He explores the ramifications of his insights into a wide range of cerebral functions, such as sleep, dreaming, awareness, problems solving, creative thinking, and the dynamics of nerve cell assemblies that make consciousness possible. Calvin has written primarily for his colleagues in neuroscience, as well as for lay readers. I believe he will achieve his aim, by recounting in adequate detail the basic concepts from which he is reasoning, and thereafter exploring ideas and issues that his reductionstically minded colleagues have largely ignored."--Walter J. Freeman, Professor of the Graduate School, University of California at Berkeley

"The Cerebral Code" offers an understanding of how Darwinian processes could operate in the brain to shape mental images in only seconds, starting with shuffled memories no better than the jumble of our nighttime dreams, but evolving into something of quality, such as a sentence to speak aloud. Jung said that dreaming goes on continuously but you can't see it when you are awake, just as you can't see the stars in the daylight because it is too bright. Calvin's is a theory for what goes on, hidden from view by the glare of waking mental operations, that produces our peculiarly human type of consciousness with its versatile intelligence. As Piaget emphasized in 1929, intelligence is what we use when we don't know what to do, when we have to grope rather than using a standard response. Calvin tackles a mechanism for doing this exploration and improvement offline, as we think before we act or practice the art of good guessing. Surprisingly, the subtitle's "mosaics of the mind" is not a literary metaphor. It is a description of a mechanism of that appears to be an appropriate level of explanation for many mental phenomena, that of hexagonal mosaics of electrical activity that compete for territory in the association cortex of the brain.