When setting up a participant for a sleep study, there are 3 types of electrodes that must be properly placed. The first are EEG, electroencephalogram, which are placed around the head and measure brain activity. The second are EOG, electrooculography, which are placed on the sides of the eyes and measure rapid eye movements. The third are EMG, electromyography, which are placed in certain positions on the face. The participant wears an embletta unit that all electrodes are plugged into, as well as two respiratory belts, one for the thorax and one for the abdomen. There is also a nasal cannula and thermistor that the particpant must wear that measure air flow and temperature, as well as EKG monitors for the heart and leg electrodes that will detect restless leg movements. Finally, once the participant's equipment is all set up and everything is working correctly, their head is wrapped with pre-wrap to make sure everything stays secure during the night.
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