Implicit Learning and Tacit Knowledge

The book is an extended essay on implicit learning, a topic that emerged in recent years as an important but previously overlooked process. Implicit learning is learning that takes place independent of both the process and products of learning. It occurs without the intention to learn and largely without awareness of the nature of what has been learned. The process is “bottom-up”; information is acquired automatically when individuals focus attention on complex displays; and the knowledge base is “tacit” and largely opaque to introspection. Examples abound in everyday life, notably natural language learning and the acquisition of the mores of social behavior. A core assumption is that this implicit acquisitional mechanism is a fundamental “root” process that is based on evolutionarily old neurological structures and lies at the heart of the adaptive behavioral repertoire of every complex organism. Firstly, the book outlines the essential features of implicit learning that have emerged from controlled studies carried out over the past several decades. It also presents alternative perspectives that have been proposed and accommodates these views to the proposed theoretical model. It then structures the literature within the framework of Darwinian evolutionary biology that lies at the core of the theory. Finally, it shows how the evolutionary stance makes a series of predictions about how functions based on implicit mechanisms should differ from those mediated by consciousness.