The story of the discoveries of the anatomy and physiology of the human brain rests on a firm foundation of evolutionary processes. The transformations that have brought modern humankind to its current dominant intellectual status on Earth follow a pattern governed by certain fundamental rules of nature that thread their way through the fabric that constitutes the history of brain and behavior—terms that define modern neuroscience. An awareness of those rules or postulates facilitates our understanding of how the antecedent discoveries have shaped present-day knowledge of the brain and its awesome functional capacities. An overview of three broad postulates is introduced here as prelude to a more specific description of some of the events that entered into what we know about the brain at the end of the twentieth century.
KeywordsComparative Anatomy Olfactory Cortex Basic Postulate Vertebrate Brain Random Observa
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