"A Merloyd Lawrence book."

Includes bibliographical references (p. 471-488) and index.

Origin of symbols -- Intellectual growth and transformations of emotions during the course of life -- The early stages of emotional regulation, engagement, and signaling : nonhuman primates and the earliest hominids -- Problem-solving collaborations : chimpanzees and early humans -- Symbols, words, and ideas : Archaic H. sapiens and early moderns -- Representation and the beginning of logic Homo sapiens sapiens -- The engine of evolution -- The origins of language -- The role of emotions in language development -- Emotions and the development of intelligence -- How emotional signaling links emotion and cognition and the brain's subsymbolic and symbolic cortical systems : implications for neuroscience and Piaget's cognitive psychology -- Emotional development derailed : pathways to and from autism -- The developmental levels of groups, societies, and cultures -- A new history of history -- Towards a psychology of global interdependency.