The EEG channel is hidden but can be easily brought into view. (See Step 2.) The measurement boxes are above the marker region in the data window. Each measurement has three sections: channel number, measurement type, and result. The first two sections are pull-down menus that are activated when you click them. Brief definition of measurements: Stddev: Standard deviation is a measure of the variability of data points. The advantage of the Stddev measurement is that extreme values or artifacts do not unduly influence the measurement. Freq: Converts the time segment of the selected area to frequency in cycles/sec. The “selected area” is the area selected by the I-beam tool (including endpoints).
2