Abstract

This chapter applies the parity principle in discussing “active externalism,” which claims that the mind need not be confined within either the brain or body. Consequently, how one brain or body interacts with other brains and bodies must be explored, together with the problems that may arise out of this interaction. This chapter is not concerned with beliefs and desires as mental states but whether they play a role in controlling behavior. It argues the notion that any course of action considered part of the cognitive process going on inside the brain is still part of the cognitive process no matter where it is being implemented. Divided into two parts, this chapter first establishes some points of reference regarding language and cognition, and then proceeds to an attempt to connect the issues by directly discussing the parity principle.