Abstract

Basic Questions The following are among the basic questions discussed in this essay: (1) What is the concept of a person? (2) What properties make something a person? (3) Is personhood a matter of degree? (4) Is potential personhood morally significant? (5) Is species membership morally significant? (6) Why is the concept of a person important? Important Arguments The important arguments that are examined include the following: (1) Counterexample arguments: (a) Whole brain death and upper brain death. (b) Brain transplants. (c) Currently irreparable damage versus impossibility of resuscitation. (2) The reprogramming argument. (3) The generalized potentialities argument. (4) Potentialities and comas: active versus passive. (5) Anti-speciesism and the common sense generality of the concept of a person: deities, angels, disembodied souls, extraterrestrials. Important Positions Among the important positions considered are the following: (1) Consciousness is sufficient for personhood. (2) Self-consciousness is necessary for personhood. (3) The capacity for thought is necessary for personhood. (4) Moral agency is necessary for personhood.