Dualism is the belief that there are separate physical and non-physical aspects of reality.
Idealism says that nothing actually physically exists.
Maybe nothing except you exists. The problem with this is that people have no intrinsic worth, relative to very complex, useful machines. If you think you're in this category, but object to the idea that computers will some day be exactly the same as people, I think you're confused. So, I believe that if one is both a scientist and believes in any kind of spirituality, one is actually a dualist. For an entertaining general description of philosophy, see The Big Dummy's Guide to Theology, Philosophy, and Ethics .