Where Do Cognitive Processes Take Place? The Extended Mind Thesis and its Internalist Critique

The idea that cognitive processes extend the boundaries of the cognizer's body is fairly popular in contemporary philosophy of mind. However, some philosophers constantly accuse its followers of conceptual overuse and logical fallacies. In this paper I analyse the coupling constitution fallacy, which is sometimes ascribed to the advocates of the extended mind thesis. My aim is to demonstrate that externalists are not able to defend their positions against this critique. Still, escaping the coupling-constitution fallacy leads to strongly unreasonable consequences that even internalist critics are not willing to accept. Under certain sound conditions, the explanation of cognitive processes cannot avoid this fallacy.