The physicalist move

Dualism faces the interaction problem: how can a nonphysical mind affect a physical body? Physicalism dissolves this at a stroke by denying proposition (1) — the claim that the mind is a nonphysical thing. If everything is physical, the mind interacts with the body without difficulty.

But in what way is the mind physical? Five answers compete: behaviorism (mind is behavior), identity theory (mind is brain), functionalism (mind is computational role), anomalous monism (mental descriptions are irreducible though events are physical), and eliminativism (there is no mind at all).