Key points are not available for this paper at this time.
Pretext 1 Visions of vision 1 2 Light 14 3 Eye 24 4 Brain 67 5 Seeing brightness 84 6 Seeing movement 98 7 Seeing colours 121 8 Learning how to see 136 9 Realities of art 170 10 Illusions 194 11 Speculations 244 Bibliography and notes 256 Index 269
Beck et al. (Wed,) studied this question.