  It is also a further question whether there is only a single action, bodily or otherwise, that is performed along the causal route that begins with trying to move and terminates with a movement of the chosen type. One possibility, adverted to above, is that there is a whole causal chain of actions that is implicated in the performance of even the simplest physical act of moving a part of one's body. If, for example, ‘action’ is goal-directed behavior, then the initiating neural activity, the resulting muscle contractions, and the overt movement of the arm may all be actions on their own, with each member in the line-up causing every subsequent member, and with all of these actions causing an eventual switch flipping somewhere further down the causal chain. On this approach, there may be nothing which is the act of flipping the switch or of turning on the light, because each causal link is now an act which flipped the switch and (thereby) turned on the light [see Wilson 1989]. Nevertheless, there still will be a single overt action that made the switch flip, the light turn on, and the burglar become alert, i.e., the overt movement of the agent's hand and arm. In this sense, the proposal supports a modified version of the Davidson/Anscombe thesis.