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Some philosophers attempt to explain consciousness directly in neurophysiological or physical terms, while others offer cognitive theories of consciousness whereby conscious mental states are reduced to some kind of representational relation between mental states and the world.
It would be misleading to say that physical addiction and psychological addiction are completely separate. This is because the brain and the body are not different things â the brain is part of the body. It is possible for the person to have addiction symptoms that are predominately psychological in nature.