Abstract

Abstract: The memory systems of the brain include explicit, conscious memory and a separate type of implicit learning from experience that occurs without awareness of the content learned. These two different forms of memory depend on different neural mechanisms but both contribute to our ability to learn complex cognitive abilities. The relatively less studied mechanisms of implicit learning will be examined via a series of studies with a skill learning task that produces robust knowledge outside of awareness. These studies show both the capability and limitations of implicit learning processes. However, to understand complex learning processes it will be necessary to not only understand these types of learning, but also how and when these information sources interact. Driven by two experiments demonstrating different types of memory system interactions, a general framework (PINNACLE) for characterizing the practical use of multiple memory systems is described.