<div dir="ltr">Dear Joao,<div><br></div><div>You need to run the group-level statistics in the end, right? Then run ICA for all subjects and create a STUDY to identify P300. If you want to test P300 at channels like Fz, Cz, Pz, use my backprojection function std_backproj() after cluster cleaning (i.e. creating a 'garbabe box' cluster by specifying 3 std as a threshold and move any suspicious scalp maps ICs to the garbage box' so that each of your cluster is maximally consistent in scalp maps, spectra, etc by visual inspection).</div>
<div><a href="http://sccn.ucsd.edu/wiki/Plugin_list_process">http://sccn.ucsd.edu/wiki/Plugin_list_process</a><br><div><br></div><div>Makoto</div><div><br></div></div></div><div class="gmail_extra"><br><br><div class="gmail_quote">
2014-03-20 7:25 GMT-07:00 Ethan Weed <span dir="ltr"><<a href="mailto:ETHAN@cfin.dk" target="_blank">ETHAN@cfin.dk</a>></span>:<br><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex">
If you have enough events, why not just remove epochs that have artifacts entirely? Then you will be on the safe side, and you won't have to worry about distorting your data artificially.<br>
<br>
<br>
Best,<br>
Ethan<br>
<div><div class="h5"><br>
On Mar 18, 2014, at 06:08 , Joćo Pedrosa <<a href="mailto:jpedrosa.casq@gmail.com">jpedrosa.casq@gmail.com</a>> wrote:<br>
<br>
> Dear all,<br>
> given a simple P3 paradigm what do you think is the best signal processing technique for the correction of the ocular artifacts (mainly blinks) with minimum EEG distortion?<br>
> I have tried different techniques such as ICA and manual component selection and also the algorithms available on the AAR 1.3 plugin with fairly good results but would anyway like to know what you advise on.<br>
><br>
> Best regards,<br>
> Joćo Pedrosa<br>
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</blockquote></div><br><br clear="all"><div><br></div>-- <br><div dir="ltr">Makoto Miyakoshi<br>Swartz Center for Computational Neuroscience<br>Institute for Neural Computation, University of California San Diego<br></div>
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