Word: subject
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Dates: during 1990-1999
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Moreover, TV monitors in the control rooms keep track of each subject unless he is in the bathroom. And a rectal temperature probe takes a new temperature reading every second, which allows the subject's core body temperature rhythm to be plotted continuously on a computer screen...
Blood is drawn intravenously through a tube stretching across the room through an opening in the wall, which can be attached to a subject's arm for up to a week. A technician can therefore draw blood regularly without disturbing the subject, even when he or she is asleep...
...monitoring and careful control make the circadian rhythm and sleep studies expensive--averaging about $3,500 per day per subject, according to Jayne...
Huynh says that in one type of procedure used in experiments, called a constant routine, a subject may be required to remain in bed for 40 hours or more while sitting up and staying awake...
...addition to psychological and physical exams, the subject must agree to certain conditions, which Jayne admits are daunting--especially for college students. During the three weeks prior to the entering the lab, a subject must refrain from having caffeine and must agree to go to bed and wake up within half an hour of the same time...