If You Were Hooked Up to Electrodes That Gave You

Multiple Choice

If you were hooked up to electrodes that gave you a reading of only your eye movements (an electroocculogram, or EOG) during the night, would you be able to learn anything about your sleep cycles, and why?

A) No, because an electroencephalogram (EEG) , which is recorded by scalp electrodes, is needed to monitor sleep states.
B) No, because both an EEG and an electromyogram (EMG) are needed to monitor sleep states.
C) Yes, because an EOG would tell you if your eyes were open.
D) Yes, because the EOG would measure jerky eye movements that characterize one type of sleep, called REM sleep.
E) No, because your breathing rate is also a factor and would not be monitored by an EOG.