The brains of advanced mammals comprise an interconnected amalgamation of three main analyzers that in their structure and chemistry reflect developments identified, respectively, with reptiles, early mammals, and late mammals. The main substance of MacLean's (National Institute of Mental Health, Bethesda, MD) examination concerns comparative neurobehavioral and clinical studies related to evolutionary considerations of the structure, chemistry, and functions of the triune brain. Annotation(c) 2003 Book News, Inc., Portland, OR (booknews. com) | The Triune Brain In Evolution by P. d. MacLean, Hardcover | Indigo Chapters | The Triune Brain In Evolution by P.d. MacLean, Hardcover | Indigo Chapters