... strongly deny that theycan see, namely, because they believe that they lack the requisite kind of perceptual experience. And note, here, thatsuch subjects continue to deny that they can see even ... forinstance, between simply seeing a green apple and seeing that the apple is green –as though these were different kinds of seeing. See, for example, Fred I. Dretske,Seeing and Knowing (London: ... ‘blind’ regions of their visual fields? After all, they them-selves strongly deny that they can see anything there. If the answer is given that they must be seeing something sincethey are evidently...