Chapter 6

If someone electrically stimulated the auditory receptors in your ear, how would you perceive it?

What makes the blind spot of the retina blind?

You sometimes find that you can see a faint star on a dark night better if you look slightly to the side of the star instead of straight at it. Why?

If you found a species with a high ratio of cones to rods in its retina, what would you predict about its way of life?

Suppose a bipolar cell receives excitatory input from medium-wavelength cones and inhibitory input from all three kinds of cones. When it is highly excited, what color would one see? When it is inhibited, what color perception would result?

When a television set is off, its screen appears gray. When you watch a program, parts of the screen appear black, even though more light is actually showing on the screen than when the set was off. What accounts for the black perception?

Most people can use varying amounts of three colors to match any other color that they see. Who would be an exception to this rule, and how many colors would they need?

Where does the optic nerve start and where does it end?

What are the differences between the magnocellular and parvocellular systems?

What is an example of an "unconscious" visually guided behavior?

Suppose someone can describe an object in detail but stumbles and fumbles when trying to walk toward it and pick it up. Which is probably damaged, the dorsal path or the ventral path?

What is prosopagnosia, and what does its existence tell us about separate shape recognition systems in the visual cortex?

When you wiggle your eyes back and forth, why don't you see a blur?