Assignment Number 12
Discussion/Writing Assignment

Chapter 6. Sensation and perception (180-203)
Student Name _____________________
Date due: 10-6-04
Introduction to Psychology 101
Hal S. Bertilson, Ph.D.
If this paper is late and you believe it may qualify as an excused absence please explain __________________________________
Late papers. Unexcused late papers may be turned in for one-half credit for the written portion of the assignment.
Spacing. Papers must be typed, double spaced.
8-1/2 X 11 paper. In order to make handling papers easy and to ensure that none are misplaced, all papers are expected to be 8-1/2 X 11 inches, stapled, and with no torn, spiral notebook edges.
Answer the following "Looking Back" questions on page 226-7)
1. What kind of "code" in the nervous system helps explain why a pinprick and a kiss feel different? (184)
3. Why does your dog hear a "silent" doggie whistle when you can't? (186)
4. What kind of bias can influence whether you think you hear the phone ringing when you're in the shower? (186-187)
5. What happens when people are deprived of all external sensory stimulation? (187-188)
6. How does the eye differ from a camera? (193-194)
7. Why can we describe a color as bluish green but not as reddish green? (196)
8. If you were blind in one eye, why might you misjudge your distance from a painting on the wall but not the distance to buildings a block away? (199)
9. As a friend approaches, her image on your retina grows larger; why do you continue to see her as the same size? (200)
10. Why are perceptual illusions so valuable to psychologists? (202)