@medium-density,
I'll read up on Soon, Brass, Heinze, & Haynes (2008).
I personally extend my identity beyond my conscious awareness, but this is not true of all people, there is wide variance in the how far individual extend "self".
My thinking, my potential, my body, my family, ....etc.
This begins to touch on ethics however, so I don't know how far you want to extend the discussion.
For the purposes of discussing individual "organisms" there is some real meaning to considering "self" to be the totality of at least
all cerebral activities. Knowing also the intimate relationship with endocrine and other "systems".
From my previous reading regarding reaction studies, the "readiness potential" which chronologically proceeds conscious awareness is the same whether or not the respondent decides to perform the action.
The unconscious brain seems to be primed to act, but conscious awareness will or will not allow the completion of the act.
As I said though I will read the study you suggested and get back to you.