1. 1. Provide an example of sensory adaptation. No longer hearing the buzzing of the projector

2. 1. Provide an example of sensory adaptation. Not smelling your own perfume or cologne

3. 2. Explain the difference between sensations and perceptions using the sense of vision. Light waves create impulses that are sensations – light reflected off someone’s face A perception would be knowing who that person is Light waves create impulses that are sensations – light reflected off someone’s face A perception would be knowing who that person is

4. 3. How is our visual range different from that of birds or insects? They are able to see ultraviolent rays (shorter wavelengths, but not longer “red” wavelengths)

5. 4. What does the iris do? It controls the amount of light entering the eye by changing the size of the pupil

6. 5. What is the job of the lens? To bend and focus the light waves into a narrow beam onto the retina

7. 6. On which part of the eye does the process of transduction begin? The retina

8. 7. What is the fovea? Of what type of cells is it made? The center of the retina – where vision is the sharpest because it is made up of cones

9. 8. Which type of retinal cells is better in low-light? Rods

10. 9. Use your own words to describe the basic idea of trichromatic color theory? It says we can see color because we have three different types of cones that are sensitive to the primary colors (red, blue, and green), and the combination of these three can make millions of different colors

12. 10. What are the opposing color pairs proposed for the opponent- process theory of color vision? Blue- yellow Red-green Blue- yellow Red-green

17. 11. Which theory is correct? Explain. Both Trichromatic theory works for the early stages of color processing, and opponent- process works later Both Trichromatic theory works for the early stages of color processing, and opponent- process works later

18. 12. What causes the most common form of color blindness? Dichromats usually have trouble distinguishing red and green because they only have two types of cones (instead of three)