Hello Chaitanya,<div><br></div><div>The eeglab spectopo function (see help spectopo) can help you compute frequency data and graphics,</div><div>and as per previous communications on eeglablist, computes hanning windows using matlab's pwelch function.</div>
<div>The eeglab time-frequency function may also be of help.</div><div>Regarding ICA, I assume you are removing unwanted components from data that is analyzed.</div><div>Let me know if you have success, and if you are able to complete your mission within eeglab.</div>
<div><br></div><div>All the best,</div><div>Tarik</div><div><br></div><div><br></div><div><br>********************************************************************************************************************************<br>
Tarik Bel-Bahar, PhD<br>Department of Clinical, Educational, and Health Psychology/ University College London<br>AFC-UCL Developmental Neuroscience Unit / Anna Freud Centre, 21, Maresfield Gardens/ London NW3 5SD<br>Tel: +44 (0) 20 7443 2212 / Receptionist: +44 (0) 20 7794 2313/ Fax: + 44 (0) 20 77946506<br>
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<br><br><div class="gmail_quote">On Fri, Jan 22, 2010 at 2:43 AM, chaitanya bhavaraju <span dir="ltr"><<a href="mailto:chaitanya1686@gmail.com">chaitanya1686@gmail.com</a>></span> wrote:<br><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex;">
Dear All,<br><br>I am new to EEG analysis. Firstly, I would like to know that is it sufficient to use ICA analysis for minimizing the Artifacts. I used runica buit in function of the EEGLAB for ICA analysis, do i have to use another one. After ICA analysis I exported the data into a text file and then tried FFT on that data. Is it the correct procedure to follow. Prior to perform the FFT, i created a hanning window for the required length and then multiplied it with the specific channel epoch of same length and then I did FFT. <br>
<br>These questions may be too basic for you but I am not from electrical background and I really need help from you people in analyzing the data.<br><br>thank you,<br><font color="#888888"><br>Chaitanya<br>
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