In
philosophy of mind, epiphenomenalism is a view according to which some or all
mental states are mere
epiphenomena (side-effects or by-products) of
physical states of the
world. Thus, epiphenomenalism denies that the
mind (as in its states, not its
processing) has any causal influence on the
body or any other part of the physical world: while mental states are caused by physical states, mental states do not have any causal influence on physical states. Some versions of epiphenomenalism claim that all mental states are causally inert, while others claim that only some mental states are causally inert. The latter version often claims that only those types of mental states that are especially difficult to account for
scientifically are epiphenomenal, such as
qualitative mental states (e.g., the
sensation of
pain).
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EPIFENOMENALISMO. I FENOMENI SECONDARI