ABSTRACT
The purpose of this chapter is to think about the person that each of us is, to explore how that person comes into being and how that person is related to the brain, body and environment. As people attempt to understand being human they map out brain-body-environment relationships and influences that run in a variety of directions and includes the interactions of a number of factors at once. Against the rational man of modernity, a range of critical social, political and psychoanalytic theories have posited a 'decentred' subject. Sexual difference, however, is never simply a function of material differences which are not is some way both marked and formed by discursive practices. Across the fields of sociology, molecular biology, brain science, philosophy and political theory the authors find evidence, often in quite different guises, that compels them to think of a person that is simultaneously brain, body, culture, environment and even microbe.
