Full Idea
We can accept determinism without accepting physical determinism, and so without accepting the completeness of physics. ...We can have a deterministic model in which sui generis mental forces play an essential role.
Clarification
'sui generis' means of their own type - not reducible
Gist of Idea
Determinism is possible without a complete physics, if mental forces play a role
Source
David Papineau (Thinking about Consciousness [2002], App 3)
Book Reference
Papineau,David: 'Thinking about Consciousness' [OUP 2004], p.240
A Reaction
Papineau cites (on p.241) the 18th century biologist Robert Whytt as an example of this view.