EEG:Processing:Preprocessing: Difference between revisions
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(Created page with "=FFTs in NetStation= :1. Open collected data in NetStation window :2. In the Dense Waveform Display view (DWD), click and hold the '''shift''' key to select at leas 20 seconds...") |
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=FFTs in NetStation= | =FFTs in NetStation= | ||
:1. Open collected data in NetStation window | :1. Open collected data in NetStation window | ||
:2. In the Dense Waveform Display view (DWD), click and hold the '''shift''' key to select at | :2. In the Dense Waveform Display view (DWD), click and hold the '''shift''' key to select at least 20 seconds of data. Drag your cursor across the EEG continuous file to collect that data you would like to examine. | ||
::'''''NOTE:''''' ''to change the seconds display, in the Time Scale option at the top of the DWD view, you can select how many seconds are shown.'' | ::'''''NOTE:''''' ''to change the seconds display, in the Time Scale option at the top of the DWD view, you can select how many seconds are shown.'' | ||
:3. Go to ''View'' and select ''New Spectral Window''. | :3. Go to ''View'' and select ''New Spectral Window''. | ||
:4. Go back to the DWD window and drag the highlighted data in the newly created spectral window. FFTs for individual channels will appear. | :4. Go back to the DWD window and drag the highlighted data in the newly created spectral window. FFTs for individual channels will appear. | ||
:5. In the accompanying small window, select 2 standard deviations for the best view of the power y-axis. Use the scroll arrows on the x-axis of the graph to extend the frequency axis. | :5. In the accompanying small window, select 2 standard deviations for the best view of the power y-axis. Use the scroll arrows on the x-axis of the graph to extend the frequency axis. | ||
Revision as of 06:28, 25 October 2013
FFTs in NetStation
- 1. Open collected data in NetStation window
- 2. In the Dense Waveform Display view (DWD), click and hold the shift key to select at least 20 seconds of data. Drag your cursor across the EEG continuous file to collect that data you would like to examine.
- NOTE: to change the seconds display, in the Time Scale option at the top of the DWD view, you can select how many seconds are shown.
- 3. Go to View and select New Spectral Window.
- 4. Go back to the DWD window and drag the highlighted data in the newly created spectral window. FFTs for individual channels will appear.
- 5. In the accompanying small window, select 2 standard deviations for the best view of the power y-axis. Use the scroll arrows on the x-axis of the graph to extend the frequency axis.