Explain the distinction between type identity and token identity. What implications does it have for psychiatry?
You have asked for a comparison of type identity and token identity and what implications for psychiatry these comparisons have brought about in the field.
Type vs. Token Identity
The difference between Type Identity and Token Identity, manifests itself in the ontological commitments implicit in various Mind-Brain Identity theses. Nagel was one of the first to distinguish between "general" and "particular" identities in the context of the mind-body problem; this distinction was picked up by Charles Taylor, who wrote in 1967 that "the failure of [general] correlations...would still allow us to look for particular identities, holding not between, say, a yellow after-image and a certain type of brain process in general, but between a particular occurrence of this yellow after-image and a particular occurrence of a brain process." In contemporary parlance: when asking whether mental things are the same as physical things, or distinct from them, one must be clear as to ...
This solution examines a comparison of type identity and token identity and what implications for psychiatry these comparisons have brought about in the field.