Personhood is a foundational concept in ethics, yet defining criteria have been elusive. In this article we summarize attempts to define personhood in psychological and neurological terms and conclude that none manage to be both specific and non-arbitrary. We propose that this is because the concept does not correspond to any real category of objects in the world. Rather, it is the product of an evolved brain system that develops innately and projects itself automatically and irrepressibly onto the world whenever (...) triggered by stimulus features such as a human-like face, body, or contingent patterns of behavior. We review the evidence for the existence of an autonomous person network in the brain and discuss its implications for the field of ethics and for the implicit morality of everyday behavior. (shrink)

In "Imaging or Imagining? A Neuroethics Challenge Informed by Genetics," Judy Illes and Eric Racine argue that "traditional bioethics analysis" (TBA) is insufficient to deal with moral and metaphysical challenges endemic to recent developments in neuroscience, apparently because they believe that these developments differ in kind, not merely degree, from previous developments. This article suggests that recent neuroscientific developments do not have any metaphysical implications that pose the sort of challenge with which Illes and Racine are concerned. Illes and Racine's (...) view fails because of two faulty metaphysical assumptions: first, the assumption that the mind is the brain; and second, the assumption that neurotechnology has implications for questions related to personal identity. (shrink)