Although I begin with a brief look at the idea that as a faculty of mind, apperception must be grounded in some power of the soul, my focus is on claims about the alleged noumenal import of some of Kant’s particular theses about the faculty of apperception: it is inexplicable, immaterial, and can provide evidence that humans are members of the intelligible world. I argue that when the claim of inexplicability is placed in the context of Kant’s standards for transcendental (...) psychological explanation, it has no noumenal implications. Similarly, when understood in the context of his views about scientific explanations, Kant’s claim that the faculty of apperception cannot be understood in materialist terms has no important metaphysical payoff. The case of freedom is different, because for a long time, Kant believed that he could establish the freedom required for morality by appealing to the freedom required for thought. In the end, however, he abandoned this hoped for noumenal implication of the faculty of apperception. (shrink)