In the preceding chapter we explored depression from the point of view of the thwarting of needs. In this chapter we shall widen our focus and consider the idea that humans have evolved predispositions to form internal representations of various forms of social behaviour and roles. To explore this aspect from an evolutionary angle requires consideration of how these social dispositions are laid down in gene-neural structures. To put this a different way, we are interested in pursuing the idea that the mind is a mixed system containing various policies (Ornstein, 1986) or special purpose processing modules (see Chapter 5), or archetypes.