Her work is on the nature of the self, which she examines from the vantage point of issues in philosophy of mind, artificial intelligence (AI), metaphysics, astrobiology, epistemology, and neuroscience. The topics she has written about most recently include the software approach to the mind, AI ethics, and the nature of the person. She is also a fellow with the Institute for Ethics and Emerging Technologies and the Center of Theological Inquiry in Princeton.