Here’s a new paper by Shannon Spaulding. The abstract:
Extended cognition is the view that some cognitive processes extend beyond the brain. One prominent strategy of arguing against extended cognition is to offer necessary conditions on cognition and argue that the proposed extended processes fail to satisfy these conditions (Adams and Aizawa, 2008; Rupert, 2010; Weiskopf, 2008). I argue that this strategy is misguided and fails to refute extended cognition. I suggest a better way to evaluate the case for extended cognition that should be acceptable to all parties, captures the intuitiveness of previous objections, and avoids the problems with the strategy of offering necessary conditions on cognition. I conclude that extended cognition theorists have failed to establish the truth of extended cognition.