To defend his position, Putnam developed the famous Twin Earth thought experiment. Hilary Putnam focused particularly on intentionality between our thoughts and external state of affairs – whether concepts or objects. This is a relatively safe move since it does not jeopardize our beliefs of being located inside our cranium. Yet the physical basis and mechanisms of the mind remain inside the head. Semantic externalism suggests that the mental content does not supervene on what is in the head.
As the name suggests it focuses on mental content of semantic nature. Semantic externalism is the first form of externalism which was dubbed so. Several philosophers consider the conscious phenomenal content and activity, such as William Lycan, Alex Byrne or Francois Tonneau Teed Rockwell or Riccardo Manzotti. Some externalists focus on cognitive aspects of the mind – such as Andy Clark and David Chalmers, Shaun Gallagher and many others – while others engage either the phenomenal aspect of the mind or the conscious mind itself. The extreme view of externalism argues either that the mind is constituted by or identical with processes partially or totally external to the nervous system.Īnother important criterion in externalist theory is to which aspect of the mind is addressed. At the opposite extreme, the mind necessarily depends on external factors. At one extreme, the mind could possibly depend on external factors.
Externalism stresses factors external to the nervous system. There are different versions of externalism based on different beliefs about what the mind is taken to be. Externalism is a belief that the mind is not just the brain or functions of the brain. It is contrasted with internalism which holds that the mind emerges from neural activity alone. Not to be confused with Epistemic externalism, Semantic externalism, or Externalism about moral reasons.Įxternalism is a group of positions in the philosophy of mind which argues that the conscious mind is not only the result of what is going on inside the nervous system (or the brain), but also what occurs or exists outside the subject.
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