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: (Points: 5)
light perception.
the relationship between mood and sleep.
gerontology.
psychophysics.
I believe it is psychophysics
You are correct! Carl's research project falls under the field of psychophysics. Psychophysics is the scientific study of the relationship between physical stimuli, such as light, and the sensory perception and psychological experiences they produce. In this case, Carl is investigating the effects of different levels of light intensity on various physiological measures, such as alertness, blood pressure, respiration rate, and muscle tension. By comparing the results from the three groups (A, B, and C), he aims to understand how light exposure during sleep affects these factors.
