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Full Idea
The materialist theory Armstrong and I proposed joins claims of type-type psychophysical identity with a behaviourist or functionalist way of characterising mental states such as pain.
Gist of Idea
Type-type psychophysical identity is combined with a functional characterisation of pain
Source
David Lewis (Mad Pain and Martian Pain [1980], §III)
Book Ref
Lewis,David: 'Philosophical Papers Vol.1' [OUP 1983], p.124
A Reaction
Armstrong has backed off from 'type-type' identity, because the realisations of a given mental state might be too diverse to be considered of the same type. Putnam's machine functionalism allows the possibility of dualism.
| 7443 | A theory must be mixed, to cover qualia without behaviour, and behaviour without qualia [Lewis, by PG] |
| 7444 | Type-type psychophysical identity is combined with a functional characterisation of pain [Lewis] |
| 7445 | The application of 'pain' to physical states is non-rigid and contingent [Lewis] |