 Some proponents of extended mind regard their view as antithetical to the claim that mental processes are embodied. For example, Clark (2008a) argues that there is, at the very least, a tension between the two views. His version of extended mind is grounded in a liberal version of functionalism, according to which mental states and processes are individuated by functional roles specified in a fairly abstract way, as general principles linking perception, mental states and processes, and action that does not specify, in any depth, the nature of the mechanisms responsible for this linkage. The claim of embodiment, on the other hand, Clark sees as grounded either in a rejection of functionalism, or in a form of functionalism that is far more chauvinistic, in that it does, in its specification of functional roles, specify at least some of the details of their realizing mechanisms. Others see extended and embodied views of the mind as much more compatible or aligned than this, even as different facets of the same view (for example, Menary 2007, Rowlands 2010).