This view emphasizes the holistic nature of human beings to the point of seeing them as comprised of a single part, namely a body. It is often held incompletely though when it comes to issues of the intermediate state. This view doesn't see that an intermediate state requires that there is more than just a body to the human being. It also doesn't acknowledge that the soul life can be anything more than is contained in the brain which will die and decompose. To the best of my knowledge this kind of view has only recently arrived on the scene, it is only materialism with christian trimmings.
Dualism expresses the important idea that the individual continues to exist beyond death.
It also usually affirms the idea of an intermediate state between death and the resurrection of the human body. It does recognize the requirement of there to be something beyond just the brain that carries human identity and personality between the demise of the body and the resurrection. This view has also lead to an undue emphasis that as Christians we must be exclusively concerned with the souls of people. However, this need not be so. The Bible affirms both the value and importance of the human body.