Abstract
How do we control what we do not do? What are the relevant guiding mental states when an agent intentionally omits to perform an action? I argue that what happens when an agent intentionally omits is a two-part metacognitive process in which a representation of an action is brought to the agent’s mind for further processing and evaluated by her as something not to be done. Without a representation of the action not done, the agent cannot further process the possibility of her own action; she cannot intentionally try to not do something, resist performing an action, or decide or choose to not perform an action. The literature on people with frontal lobe damage suggests that without metacognitive control of action, a person automatically follows what the environment affords or what others are doing. Through at least procedural metacognitive control of action, agents are able to intentionally omit. This view has explanatory power over a variety of intentional omissions and over a variety of agents. It answers central questions in the philosophy of intentional omissions: who is capable of intentionally omitting, when and where intentional omissions unfold, and what are the relevant guiding mental states on which the control of intentional omissions is based? The answers to these questions contribute in part to naturalizing agency, at least when it comes to negative agency, our ability to guide the non-performance of our actions.