These are excerpts and elaborations from my book "The Nature of Consciousness"
Eliminative Materialism "Eliminative
materialism" is the doctrine that mental states do not exist, or, at
least, that the terminology of the mental is wrong and should be abandoned. The first one to point out
that the mental vocabulary constitutes a sort of “folk psychology” was probably
the US philosopher Wilfred Sellars (“Empiricism and the Philosophy of Mind”,
1956). That theory, that has not progressed for millennia, mostly fails to
explain and predict behavior, and it is founded on knowledge about human beings
that has long been proven false. Folk psychology is not a science. The German philosopher Paul
Feyerabend ("Mental events and the
brain", 1963) and the US philosopher Richard Rorty ("Mind-body
identity", 1965) denied the existence of the mental. They claimed that sensations are not brain
processes, but the things that we think are sensations are indeed brain
processes. The mental is nothing more than a myth. As the US neuroscientist Paul Churchland argues that our introspection
cannot be trusted as our other senses (such as sight and hearing) mislead us
about the real structure of the universe: for example, we don’t see or hear
elementary particles and probability waves. It is only the vocabulary of our
"folk psychology" that refers to beliefs and desires, sensations,
emotions, thoughts, etc. We explain people's behavior by using this
terminology, which ascribes mental states to people. In reality, only brain processes exist. In his opinion we should
replace the outdated language of folk psychology with the language of
neurobiology, just like folk physics was replaced by the more precise language
of Newton's physics. Terms such as
"belief" and "desire" are as scientific as the four spirits
of alchemy. Churchland points out evidence that folk psychology is unscientific: 1. it
has remained the same since the ancient Greeks (but so did arithmetic, didn't
it?); 2. it does not integrate well with the natural sciences (but it has been
integrated with computer science by computational functionalism); 3. it is
incomplete, as its vocabulary does not apply well to mental phenomena such as
sleep and mental diseases (Newton's physics was also incomplete, but that does not mean that the
terminology of mass and energy should be abolished). Churchland denies any validity to
"first person" mental life, to consciousness, the self, emotions,
etc. He grounds his objection to the fact that there is nothing in the brain
that resembles what folk psychology talks about: there are only patterns of
neural activity. Back to the beginning of the chapter "Mind and Matter" | Back to the index of all chapters |