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It is characteristic of dialectic awareness that discussions of intentionality appeared as the paradigm cases discussed which usually are beliefs or sometimes beliefs and desires, however, the biologically most basic forms of intentionality are in perception and in intentional action. These also have certain formal features which are not common to beliefs and desire. Consider a case of perceptual experience. Suppose that I see my hand in front of my face. What are the conditions of satisfaction? First, the perceptual experience of the hand in front of my face has as its condition of satisfaction that there be a hand in front of my face. Thus far, the condition of satisfaction is the same as the belief than there is a hand in front of my face. But with perceptual experience there is this difference: In order that the intentional content be satisfied, the fact that there is a hand in front of my face must cause the very experience whose intentional content is that there is a hand in front of my face. This has the consequence that perception has a special kind of condition of satisfaction that we might describe as ‘causally self-referential’. The full conditions of satisfaction of the perceptual experience are, first that there be a hand in front of my face, and second, that there is a hand in front of my face caused the very experience of whose conditions of satisfaction  forms a part.  We can represent this in our acceptation of the form. S(p), such as:


Visual experience (that there is a hand in front of face

and the fact that there is a hand in front of my face

is causing this very experience.)

Furthermore, visual experiences have a kind of conscious immediacy not characterised of beliefs and desires. A person can literally be said to have beliefs and desires while sound asleep. But one can only have visual experiences of a non-pathological kind when one is fully awake and conscious because the visual experiences are themselves forms of consciousness.