Written by Pam MS, NCSP | Fact checked by Psychology Dictionary staff 

n. a principle which essentially states that the mind and body are non-identical. The body (and brain) are made of extended, divisible substance, while the mind is not. Thus, the mind will persist in existing, even when the material body does not. Although they do interact, the mind is independent of the body. In addition, some bodily activities are influenced by the mind, and yet some are not. See dualism. Also mind-body problem.

CARTESIAN DUALISM: "Cartesian dualism describes the world as being made of two distinct substances: the extended substance which composes the body and the thinking substance which makes up the mind. "

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