When a nearby passenger on a train is talking loudly on the cell phone, one may experience an urge to grab the phone away, but may reach for one's set of earplugs instead. The distinction between a spontaneous urge, a deliberate intention, an abstract wish, and the usual compromise between them is generally not a major problem for humans in every day life. But what if brain activity has to be used to give paralyzed patients control over prosthetic devices? Here, a clear differentiation between these different mental states is necessary. Thus, these concepts gain very concrete significance in the field of neurotechnology.