Full Idea
The view that reason explanations are somehow causal explanations remains the dominant position.
Gist of Idea
It is generally assumed that reason explanations are causal
Source
Wilson,G/Schpall,S (Action [2012], Intro)
Book Reference
'Stanford Online Encyclopaedia of Philosophy', ed/tr. Stanford University [plato.stanford.edu], p.1
A Reaction
I suspect that this is only because no philosopher has a better idea, and the whole issue is being slowly outflanked by psychology.