Metacognition offers an up-to-date compendium of major scientific issues involved in metacognition. The twelve original contributions provide a concise statement of theoretical and empirical research on self-reflective processes or knowing about what we know.

Self-reflective processes are often thought to be central to what we mean by consciousness and the personal self. Without such processes, one would presumably respond to stimuli in an automatized and environmentally bound manner -- that is, without the characteristic patterns of behavior and introspection that are...