But where do reasons emanate from? We are consciously aware of reasons before we choose to act upon them. It is this buffer of conscious awareness which facilitates conscious choice rather than just undertaking unavoidable reaction.
Reasons, it seems to me, emanate or rather emerge from the workings of the brain. We might well be consciously aware of them, but they are just as likely in certain situations to emerge from the unconscious, especially, for instance, in creative activities. For example the writer, Diana Athill wrote:
In the early 1960s nine stories "happened" to me. I say "happened" because I did not decide to write them, but suddenly felt a peculiar sort of itch, whch produced them,
Guardian 22nd June 2013
I think Julian Baggini has it about right when he suggests that the 'idea that a choice cannot be free unless at the moment of choice you could have chosen other than you did.' is a myth.
It is not possible to make sense of this alleged capacity in a way that does not reduce choice to a random or capricious process. At the moment of any choice, the one you made was the only one you could have made. The feeling that you could have done otherwise is illusory. But this does not mean that it was not free.
p209 'Freedom Regained' by Julian Baggini
This suggests clearly that whether it be conscious or unconscious activity within the brain, there are always reasons for our choices.
On this basis, therefore, it does not matter whether you are talking about unconscious brain activity, conscious awareness or even whether your 'soul' is making all the decisions(even though there is not the slightest evidence that this 'soul' actually exists), you make your choices because of reasons. In other words it has to be a deterministic process.