Bradford Stockdale

Epiphenomenalism is the thesis that though physical events may cause mental events, those mental events never cause physical events. In this paper, I will be concerned with the claim that our thoughts, intentions, and awareness play no causal role in producing actions. Though epiphenomenalism has been defended with a priori philosophical arguments, the majority of the support that it has gained in recent years has come from advances in neuroscience. At the center of these experiments is the Libet paradigm that aims to show that our actions are initiated by unconscious brain processes prior to our awareness of the intention or decision to perform the corresponding actions. It has been widely suggested that these studies support the view that consciousness is epiphenomenal, and if Libet-style experiments support this conclusion, the results have direct implications for free will. I argue by way of a dilemma that any study that relies on reports of subjects’ awareness in its methodology cannot be used to support epiphenomenalism because the experimenters would have to rule out the possibility that consciousness plays a causal role in order to do so.

Frankfurt-style cases (FSCs) have famously served as counterexamples to the Principle of Alternative Possibilities (PAP). The fine-grained version of the flicker defense has become one of the most popular responses to FSCs. Proponents of this defense argue that there is an alternative available to all agents in FSCs such that the cases do not show that PAP is false. Specifically, the agents could have done otherwise than decide on their own, and this available alternative is robust enough to ground moral responsibility. In this paper, I argue that, when relying on definitions of ‘on one’s own’ within the literature on FSCs, a case can be constructed in which the agent could not have done otherwise than make a decision on his own. Insofar as this new case is successful, it will be able to avoid arguments about robustness while showing that moral responsibility does not require alternative possibilities of the type argued for by proponents of the fine-grained version of the flicker defense.