What you see and what you don't see.

 Consider for instance Bruner and Postman's classic 1949 experiment involving anomalous playing cards. In this experiment, subjects were briefly shown the following sort of card:

Figure 5

What did you just see? When subjects were exposed to this sort of card, many reported it to be a six of hearts. The card is actually a red six of spades.

One might claim that the card looked to you the way red sixes of hearts look to you. However, there is much skepticism about whether there is an effect here on perceptual experience itself (Fodor 1983; Pylyshyn 1999. Perhaps the card fails to look like a red six of hearts to you, and you simply jumped to the conclusion that it is a red six of hearts when you form your belief. The effect might merely have been on beliefs formed on the basis of perceptual experience.