Fodor begins his article on the mind-body problem with a review of the current theories of dualism and materialism. According to dualism, the mind and body are two separate entities with the body being physical and the mind being nonphysical. If this is the case, though, then there can be no interaction between the two. The mind could not influence anything physical without violating the laws of physics. The materialist theory, on the other hand, states that the mind is not distinct from the physical. In fact, supporters of the materialist theory believe that behavior does not have mental causes. When the materialist theory is split into logical behaviorism and the central-state