Table 1. Sensitivity and filter settings on standard polysomnograpy

채널(생체신호) Sensitivity Low filter (1/2 amp low), Hz High filter (1/2 amp high), Hz
EEG 50 μV/cm 0.3 70
EOG 50 μV/cm 0.3 30
EMG 500 μV/cm 10 90-100
ECG 500 μV/cm 0.3-1 30
Thermister Variable 0.1 15
Thoracic/abdominal belts Variable 0.1 15
Pressure transducer Variable 0.01 or DC* 15 (100 for snoring)
Oximeter Volt=100% DC* 15
DC : direct current, EEG : electroencephalogram, EOG : electrooculogram, EMG : electromyogram, ECG : electrocardiogram