So severe Downs children have no souls? Conveneint. Neuroscience cannot define the soul, but it can prove that it is not what we think of as consciousness. It has to be something else and be at the cellular level. Aristotle said it had to guide creation. Oddly enough, what guides creation starts at gastrulation. It is the neuro-electric energy that stops entropy (until we die). It starts from the differentiation of mesoderm and progesses. As I said in my article, that does not settle the legality of abortion, which relies on different things, especially the impact of the state on all first trimester pregnancies and miscarriages. It should, however, guide Catholics away from abortion.