<html><body><div style="color:#000; background-color:#fff; font-family:times new roman, new york, times, serif;font-size:12pt"><div>Thank you so much for the reference!</div><div><br></div> <div style="font-size: 12pt; font-family: 'times new roman', 'new york', times, serif; "> <div style="font-size: 12pt; font-family: 'times new roman', 'new york', times, serif; "> <div dir="ltr"> <font size="2" face="Arial"> <hr size="1"> <b><span style="font-weight:bold;">De:</span></b> Makoto Miyakoshi <mmiyakoshi@ucsd.edu><br> <b><span style="font-weight: bold;">Para:</span></b> Angel Tabullo <angeltabullo@yahoo.com> <br><b><span style="font-weight: bold;">CC:</span></b> "eeglablist@sccn.ucsd.edu" <eeglablist@sccn.ucsd.edu> <br> <b><span style="font-weight: bold;">Enviado:</span></b> Martes, 29 de mayo, 2012 4:53 P.M.<br> <b><span style="font-weight: bold;">Asunto:</span></b> Re: [Eeglablist] baseline removal and ICA<br> </font> </div> <br>Dear
Angel,<br><br>> Is it better to extract data epochs and remove the baseline before running<br>> an ICA decomposition?<br><br>Epoch extraction is fine, but baseline removal should be AFTER ICA...<br>if it is before before ICA, then extract whole epoch as a baseline,<br>and never do it with short pre-epoch period (like -200 to 0 ms). See<br>Gorppe, Makeig, Kutas (2009). Identifying reliable independent<br>components via split-half comparisons. Neuroimage 45:1199-1211.<br><br>Makoto<br><br>2012/5/29 Angel Tabullo <<a ymailto="mailto:angeltabullo@yahoo.com" href="mailto:angeltabullo@yahoo.com">angeltabullo@yahoo.com</a>>:<br>> I have a rather basic question about baseline removal and ICA decomposition.<br>> Is it better to extract data epochs and remove the baseline before running<br>> an ICA decomposition? In the case that there were artifacts in the baseline:<br>> should we run an ICA first and eliminate the anomalous components,
and then<br>> remove the artifact-free baseline from the rest of the epoch?<br>><br>> Thank you very much for your attention.<br>><br>> Angel Tabullo<br>><br>> _______________________________________________<br>> Eeglablist page: <a href="http://sccn.ucsd.edu/eeglab/eeglabmail.html" target="_blank">http://sccn.ucsd.edu/eeglab/eeglabmail.html</a><br>> To unsubscribe, send an empty email to <a ymailto="mailto:eeglablist-unsubscribe@sccn.ucsd.edu" href="mailto:eeglablist-unsubscribe@sccn.ucsd.edu">eeglablist-unsubscribe@sccn.ucsd.edu</a><br>> For digest mode, send an email with the subject "set digest mime" to<br>> <a ymailto="mailto:eeglablist-request@sccn.ucsd.edu" href="mailto:eeglablist-request@sccn.ucsd.edu">eeglablist-request@sccn.ucsd.edu</a><br><br><br><br>-- <br>Makoto Miyakoshi<br>JSPS Postdoctral Fellow for Research Abroad<br>Swartz Center for Computational Neuroscience<br>Institute for Neural Computation,
University of California San Diego<br><br><br> </div> </div> </div></body></html>