Hi Nany,<br><br>Depending on what you are interested in analyzing, you may need to first do preprocessing of your EEG data (rejection of noisy data, epoching and averaging); see <a href="http://sccn.ucsd.edu/wiki/Eeglab#The_EEGLAB_Tutorial_Outline">http://sccn.ucsd.edu/wiki/Eeglab#The_EEGLAB_Tutorial_Outline</a> for a list of all the processing steps and how to do them.<br>
<br>To look at frequency spectra for a particular stretch of raw data, see <a href="http://sccn.ucsd.edu/wiki/Chapter_03:_Plotting_Channel_Spectra_and_Maps">http://sccn.ucsd.edu/wiki/Chapter_03:_Plotting_Channel_Spectra_and_Maps</a> . To do time-frequency analysis of ERPs, see <a href="http://sccn.ucsd.edu/wiki/Chapter_11:_Time/Frequency_decomposition">http://sccn.ucsd.edu/wiki/Chapter_11:_Time/Frequency_decomposition</a> .<br>
<br>Best,<br>Steve Politzer-Ahles<br><br><div class="gmail_quote">On Mon, Apr 2, 2012 at 10:51 AM, nany _naning <span dir="ltr"><<a href="mailto:nany.naning@gmail.com">nany.naning@gmail.com</a>></span> wrote:<br><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex">
Hi EEGLAB,<br><br>I am new to EEG. How can I find a frequency for each signal that I collect? Alpha, Beta and Theta signal.<br>Can anyone explain to me how to find it from the raw data?<br><br>Thank you.<br><br>Regards,<br>
<br>Nany<br>
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