Integrative levels, the brain, and the emergence of complex behavior.

Abstract

The aim of this article is to bring clarity and unification to the question of how certain complex behaviors, such as feeding, learning, language, culture, and neural complexity, are related. Three critical ideas—the organizing principle of integrative levels, the tendency for increased complexity with evolutionary change, and the contextual nature of behavioral events—are central to the discussion. A theoretical framework is presented that synthesizes existing knowledge in a meaningful way. Data are drawn from the behavioral, neuroanatomical, cognitive, and linguistic sciences and integrated within an organized and unified theoretical perspective referred to as developmental dynamic systems theory.