BSL PRO Software Guide - Biopac

Appendices 279Calculation PresetName; Label; Source CHCalculation FunctionEnabled Options;ParametersUnits labelScaling(Units)EEG beta (13 - 30 Hz)BetaSource: Any Human EEG preset listed for SS2L.Filters out all frequencies except the specific beta band(which is from 13 to 30 Hz). Frequencies in the betaband can indicate levels of alertness and higheramplitudes can occur during deep sleep (REM).FilterOutput: Band Pass (l + h)LowFreq: 13, HighFreq:30Q: 0.707N/AUnits ofsourcechannel**EEG delta (1 - 5 Hz)DeltaSource: Any Human EEG preset listed for SS2L.Filters out all frequencies except the specific delta band(which is from 1 to 5 Hz). Frequencies in the delta bandare often of higher amplitude when a subject is sleeping.FilterOutput: Band Pass (low +high)LowFreq: 1, HighFreq: 5Q: 0.707N/AUnits ofsourcechannel**EEG theta (4 - 8 Hz)ThetaSource: Any Human EEG preset listed for SS2L.Filters out all frequencies except the specific theta band(which is from 4 to 8 Hz). Frequencies in the theta bandare often of higher amplitude when a subject is sleeping.FilterOutput: Band Pass (low +high)LowFreq: 4, HighFreq: 8Q: 0.707N/AUnits ofsourcechannel**EEG gamma (30 - 90 Hz)GammaSource: Requires the higher bandwidth(Electroencephalogram (EEG), .5 - 100 Hz w/notch)preset.EGG (.02 - 125 Hz)EGG (.02 - .125 Hz)EGGSource: Any Human EGG preset listed for SS2L.FilterOutput: Band Pass (low +high)LowFreq: 30, HighFreq:90Q: 0.707FilterLow Pass, 1, .707Freq: 1 HzQ: 0.707N/AN/AUnits ofsourcechannel**Units ofsourcechannel**EMG - IntegratedIntegratedSource: Any Human EMG preset listed for SS2L.Used as an indication of the EMG output level. Eachdata point of Integrated EMG is calculated using 20samples of data from the EMG source channel. Eachdata point used is first Rectified (all negative values areinverted), then the Mean value is computed.Note: The algorithm performs an average rectifiedvalue (AVR) to approximate an integration.Integrate ParametersAverage over samplesSamples: 20Parameters: Rectify-10000 > -1010000 > 10mVEMG - RMSEMG – RMSSource: Any Human EMG preset listed for SS2L.Used to measure the Standard Deviation of an EMGsignal, which is an excellent way to compare EMGoutput levels. Any baseline information is removed fromthe data. Each sample point of RMS data is calculatedusing 20 samples of data from the EMG source channel.The baseline value is first determined, then eachcomputed difference between data point and baseline issquared and summed. The square root of this sum isthen determined.Integrate ParametersAverage over samplesSamples: 20Parameters: Root meansquare, Remove baseline-10000 > -1010000 > 10mV