Different sources talk about the duality of soul-body, mind-body, mind-brain or consciousness-brain. Here, we will use the expression consciousness-brain. Over the course of history and long before the concept of consciousness had been developed, discussion was in terms of the soul, or something that existed other than the material body. At that time therefore, the appropriate term was soul-body. Later, although the concept of mind-body duality was developed, this expression is wrong, because the location of the mind is not the body; mind-brain is a more suitable match. In other contexts the above-mentioned expressions may be used, especially mind-brain, but the central concept is consciousness-brain. This is symbolized in the psi-phi (-) problem.

mind-brain problem, psi-phi problem, dualism, monism, reductionism, consciousness