Mind is central in understanding the world. Nothing is a greater sense of reality than the activity of the mind engaged in trying to understand the world. Many who subscribe to this idea, think of mind as an entity just as in the dualistic pattern and with similar educational results. Description of the monistic theory of human nature by those who see it as body alone. The best illustration of this view is Behaviorism where knowledge of human nature is based on observation of physical behavior.
Mental phenomena have no standing except as they have muscular correlates.
This theory is materialistic and mechanistic. It is materialistic because it views the body and it is mechanistic because it observes how the body reacts. Learning is fundamentally a matter of analysis of wholes into parts on the one hand, and of forming connection between stimulus and response on the other. The learner takes his or her cues from signs in the environment and acts according to what he or she thinks the signs mean. It was the Greek thinkers who made a distinction between matter and the immaterial, between mind and body, between spirit and flesh.