More at http://philosophytalk.org/shows/extended-mind.

An increasing number of psychologists and philosophers believe that to understand how the mind really works, we must understand it as both embedded in a body and as situated in an environment. According to some, in fact, the body and the environment do not just house the mind, but are an essential part of the mind in the sense that workings of the mind depend upon and exploit the body and the environment. John and Ken probe the extended mind, embodied cognition, and the situated self with renowned cognitive scientist George Lakoff, co-author of "Philosophy in the Flesh: The Embodied Mind and Its Challenge to Western Thought."