Gary Childress wrote:Is there anyone here who can adequately explain what Patricia Churchland means by "folk psychology"?
Folk psychology is the everyday language used by a [West-influenced] general population when their communications pertain to mental affairs (like beliefs, desires, the shown or manifested content of sensory receptions, etc); and any commonsense collection of assumptions about mind which the former reflects or potentially stems from.
Eliminative materialism is a movement descended from arguments of Sellars and Quine, which provoked some philosophers to reject the previously popular idea that the properties of our mental states are directly given to us. This combined with Kuhn's supposed historical revelation that new concepts in science are revolutionary rather than evolutionary. That is, new theories lack connections to old ones; the latter are simply eliminated, like phlogiston. Another example: There are no bridging relationships between alchemical essences and chemical elements, because today it is accepted that there are no alchemical essences.
From this prior work, Rorty and Feyerabend inferred that if scientific progress was eventually to sort-out the relationship between brain states and mental states, then actually this notion of establishing identities between the two was in error. When science proceeded far enough, it could merely assert that there are no mental states.
"The differences between identity and causal correlation were no longer of significance, because we were now talking about only one entity--the brain state-- the mental state having been consigned to the ontological trash heap." [Teed Rockwell]
In regard to that era's fixation: The identity theory of PoM was en vogue back then. Science research did uncover correlations between brain states and mental states which could construe the former as the cause of the latter; but such causal connections did not in themselves establish the identity philosophers desired. The first eliminativists deemed that the identity route would inevitably collapse into physical events or brain processes having non-physical features (mental), which either corrupted or contradicted what physical "stuff" was supposed to be. Only eliminativism of the mental would make physical circumstances pure again, as well as nullifying the other option of brain states having to be cause of something for which there were only personal reports and prevalent usage in language as evidence of.
Today's eliminativists variously claim that the folk psychology system is incorrect for yata reasons; either FP's concepts or definitions for its terms will be replaced by more scientific accounts for yata reasons; or more radically, that FP nomenclature refers in even its misconceptions or mis-descriptions to nothing at all that is real or is the case (even an appearance / illusion of _X_ somehow lacks instantiation or any degree of existential status).
Some EM-ists assert that FP must be discarded before the future's alternative is complete because it obstructs thinkers from considering new evidence and better explanations. Others take the view that
"Like dualists, eliminative materialists insist that ordinary mental states can not in any way be reduced to or identified with neurological events or processes. However, unlike dualists, eliminativists claim there is nothing more to the mind than what occurs in the brain. The reason mental states are irreducible is not because they are non-physical; rather, it is because mental states, as described by common-sense psychology, do not really exist." [William Ramsey]
My "layman's" understanding is that "folk psychology" wants to say that me experiencing qualia is just some kind of "myth" or "story" that I tell myself but that in some strange way I really don't experience qualia. If that is accurate of what Churchland calls "Folk psychology" then it seems to deny my most fundamental experiences. So I must either be wrong about what Churchland means or maybe she is some kind of a zombie (as David Chalmers might say)?
The possibility of philosophical zombies is is a potential consequence of epiphenomenalism. Since the latter concerns a dualism with an asymmetrical causal relationship between mental and physical affairs, p-zombies are usually rejected as absurd by suspected eliminativists like Daniel Dennett.
I don't remember the particular idiosyncrasies of Churchland's take, but Dennett "seems" to reject the definition of qualia being "ineffable, private, etc" rather than necessarily that to which the term refers for other people (i.e., our common distinguishing of properties in experience, of experience having discernable characteristics). Accordingly, he wants to discard the word / concept (and other FP symbols) if its traditional usage prevents / obstructs meaning revisions.