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Q: As a scientist, Carl is concerned with the intensity of lights in the modern human environment. In his research project, Group A consists of volunteers who have agreed to sleep each night for a week
with a 150 watt light bulb hanging over their bed. Group B will sleep in total darkness, and Group C will sleep in their usual environment. Alertness, blood pressure, respiration rate, and muscle tension will be sampled in the morning and evening. Carl is studying: A. light perception. B. the relationship between mood and sleep. C. gerontology. D. psychophysics.
A: 1. light perception.
selymi|Points 8852|
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Asked 9/9/2012 10:21:33 AM
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