Addison-Wesley Publishing Company. Reviewed by Tom Breeden. In chapter two, Norman discusses two types of cognition, experiential and reflective.
Experiential thought is essential to skilled behavior.
It appears to flow naturally, but years of experience and training may be required to make it possible. Both types of cognition are of equal value in the learning process. Norman describes three kinds of learning, accretion, the accumulation of facts, tuning, the hours of practice between a novice learner and an expert, and restructing, the acquiring of new conceptual skills. Accretion and tuning are mainly experiential in mode. Restructuring is a reflective mode.