Descartes and the Metaphysics of Human Nature

The traditional account of mind/body union attributed to Descartes supposes that the immaterial, thinking mind and the material, non-thinking body interact by means of efficient causation - that the mind causes events in the body, e.g. the voluntary raising of an arm, and vice versa, e.g. the visual sensation of a tree. But this gives rise to a notorious philosophical problem: how can this causal ...