1. It's kind of strange how our visual system is so sensitive to edges that it detects edges that don't exist (recall the optical illusions we discussed)! Why don't we see illusory edges all the time?

2. Hubel and Wiesel mapped out the entire visual cortex! How did they do it? 3. Does light have color?

4. What is the difference between Trichromatic Theory and Opponent Process Theory? How are they combined to explain color vision? 5. Color isn't inherently a part of light. Why do you think we see color? 6. Describe the method and findings of Holway and Boring's experiment on size perception. What do the findings mean about the relationship between size and distance perception?