chapter 6

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  1. The law of specific nerve energies states that:
    every stimulation of the optic nerve is perceived as light.
  2. In what order does visual information pass through the retina?

    receptor cells, bipolar cells, ganglion cells
  3. The optic nerve is composed of axons from which kind of cell?
    ganglion cells
  4. Which of the following characterizes the fovea?
    It has the greatest perception of detail.
  5. Which receptors are responsible for the perception of color?
  6. Which theory emphasizes the idea that color vision depends on the relative responses of three kinds of cones?
    Young-Helmholtz theory
  7. Color constancy is the ability to:
    recognize the color of an object despite changes in lighting.
  8. The enhancement of contrast at the edge of an object is the result of:
    lateral inhibition in the retina.
  9. In the vertebrate retina, which cells are responsible for lateral inhibition?
    horizontal cells
  10. Which ganglion cells, if any, are located mostly in or near the fovea?
  11. Visual information from the lateral geniculate area goes to the:
    primary visual cortex.
  12. Once within the cerebral cortex, the magnocellular pathway continues as a pathway sensitive to:
  13. Damage to the dorsal stream may interfere with:

    reaching out to grasp an object.
  14. Which of the following would most strongly excite a simple cell in the primary visual cortex?
    square picture frame
  15. What is one way to determine whether a given cell in the primary visual cortex is "simple" or "complex"?
    Whether it can respond equally to lines in more than one location.
  16. An inability to recognize objects despite otherwise satisfactory vision is called:
    visual agnosia.
  17. Color perception depends MOSTLY on the:
    parvocellular pathway.
  18. The ability that you have to determine that your eyes are moving, instead of the room that you are in, is a function of which brain area?
    area MST
  19. Most of the neurons in the visual cortex of very young kittens respond to:
    both eyes, and continue that way.
  20. Children with strabismus fail to develop:
    stereoscopic depth perception.
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chapter 6
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