Ch. 4 Exam

CHAPTER 4 - SENSATION & PERCEPTION - EXAM

Multiple Choice Identify the letter of the choice that best completes the statement or answers the question. ____ 1. While ____ involves the stimulation of sense organs, ____ involves the selection, organization, and interpretation of sensory input. a. sensation; perception b. activation; perception c. perception; sensation d. activation; sensation 2. The minimum stimulus intensity that an organism can detect is the a. signal-detect threshold b. just noticeable threshold c. detection threshold d. absolute threshold 3. The smallest difference in stimulus intensity that a specific sense can detect is a. a Weber fractional difference b. a detection difference c. a just noticeable difference d. an absolute difference 4. Weber’s law states that the size of ____ is a constant proportion of the size of the initial stimulus. a. a subliminal difference b. a novel difference c. a just noticeable difference d. an absolute difference 5. That the detection of stimuli involves decision processes as well as sensory processes, which are both influenced by a variety of factors besides stimulus intensity describes a. sensory adaptation b. signal-detection theory c. subliminal perception d. Weber’s law 6. The gradual decline in sensitivity to stimuli that follows prolonged stimulation is a. perceptual adaptation b. sensory adaptation c. sensory overload d. perceptual overload 7. Light, the stimulus for vision, is a. a form of electromagnetic energy b. a form of chemical energy c. the result of vibrations of molecules d. a form of mechanical energy 8. Perception of color is associated with the a. wavelength of light waves b. purity of light waves c. frequency of light waves d. amplitude of light waves 9. A red light, green light, and blue light differ in

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a. amplitude b....