Marcia Cavell draws on philosophy, psychoanalysis, and the sciences of the mind in a fascinating and original investigation of human subjectivity. A "subject" is a creature, we may say, who recognizes herself as an "I," taking in the world from a subjective perspective; an agent, doing things for reasons, sometimes self-reflective, and able to assume responsibility for herself and some of her actions. If this is an ideal, how does a person become a subject, and what might stand in the way? One of Marcia Cavell's guiding premises is that philosophical investigation into the specifically human...