Some of the studies by Libet and his peers on the consciousness's delay in recognizing our actions implies that the material processes in our brain controls our actions, and what we recognize as intention or reason is more of an ad-hoc organizing of our experiences. It is certainly possible for our minds to construct its own narrative; our dreams prove that.
Also, Nietzsche's treatment of the will has led me in this direction, as he tears apart the I and considers it merely the association with the most powerful of many competing wills.
What initially set me in this direction was that it seemed reason is more often assumed as self-apparent and then used to justify something else. I don't trust arguments like this and reason appears to me to be just as metaphysical as some of the concepts that many wish to prove with it.
This is not to say that what we consider to be reason doesn't exist, or that it is actually epiphenomenal. This ordering of events certainly represents reason and appears to occur, and I don' believe that it could contribute to further actions by altering those values that guide our actions.
The proper term would be automatism, I guess. As we act before conscious recognition but the consciousness is not entirely ineffectual.
One amazing thing to realize is that, if this idea is taken to the extreme, we could sever a part of the brain and people would could continue to act in "rational" ways but not be able to offer reasonable explanations (I believe there are studies that have actually shown this), or machines could be created that have no consciousness but a person could never actually tell.