Chapter 5 Answer Key Essay
Test Bank II
Sensing the World: Some Basic Principles (pp. 172-177)
1. Contrast the processes of sensation and perception.
2. Distinguish between absolute and difference thresholds, and discuss research findings on subliminal stimulation.
3. Describe the phenomenon of sensory adaptation, and explain its functional value.
Vision (pp. 177-188)
4. Explain the visual process, including the stimulus input, the structure of the eye, and the transduction of light energy.
5. Discuss the different levels of visual information processing and the value of parallel processing.
6. Explain the Young-Helmholtz and opponent-process theories of color vision, and describe the …show more content…
Absolute thresholds, p. 173 Medium, Conceptual, Objective 2, Ans: c
10. Although Mandume was sitting right next to his parents, he smelled a skunk minutes before they did. Apparently, Mandume has a lower ________ for skunk odor than his parents have. a. accommodation level b. tolerance level c. absolute threshold d. olfactory saturation level e. feature detector
Absolute thresholds, p. 173 Difficult, Conceptual, Objective 2, Ans: a
11. If an adult develops cataracts, his or her ________ threshold for light is likely to ________. a. absolute; increase b. difference; decrease c. absolute; remain unchanged d. difference; remain unchanged e. absolute; decrease
Signal detection, p. 173 Easy, Conceptual, Objective 2, Ans: c
12. An exhausted forest ranger may notice the faintest scent of a forest fire, whereas much stronger but less important odors fail to catch her attention. This fact would be of greatest relevance to: a. the Young-Helmholtz theory. b. opponent-process theory. c. signal detection theory. d. frequency theory. e. place theory.
Signal detection, p. 173 Medium, Conceptual, Objective 2, Ans: e
13. The fact that fear may increase your sensitivity to an almost imperceptible pain stimulus is of most relevance to: a. place theory. b. frequency theory. c. the Young-Helmhotz theory. d.