Dear Sigona,<div><br></div><div>There must have been Arno's post to this list explaining how to use EEGLAB Dipfit to fit a diple to scalp topo of certain latency. Why don't you check out the archive (sorry I don't have time to find it for you).</div>
<div><br></div><div>Makoto<br><br><div class="gmail_quote">2013/2/18 Francesco Sigona <span dir="ltr"><<a href="mailto:francesco.sigona@unisalento.it" target="_blank">francesco.sigona@unisalento.it</a>></span><br><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex">
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<span lang="en"><span>Hello
guys</span><span>,<br>
<br>
I recently</span> <span>started using</span> <span>eeglab</span> <span>with which</span> <span>I would like to</span> <span>carry out</span>
<span>a dipole fitting</span><span> on
ERPs data (N100).</span><br>
<span>I usually use</span> <span>BrainVision</span>
<span>Analyzer</span> <span>to work with</span>
<span>ERPs</span><span>, but</span> <span>this</span>
<span>software cannot do</span> <span>the
</span><span>dipole localization.<br>
<br>
</span><span>I</span> <span>cleansed</span>
<span>the signals with</span> <span>ICA</span>
<span>(on</span> <span>BrainVision</span>
<span>analyzer)</span><span>, I ran</span> <span>an average</span> <span>of the
different epoques </span><span>and</span> <span>I imported</span> <span>the data</span>
<span>(65</span> <span>sensors</span><span>,
70</span> <span>time points</span><span>)</span> <span>in</span> <span>eeglab</span><span>.</span>
<span>Then I followed</span> <span>the
tutorial about </span><span>dipfit
(<a href="http://sccn.ucsd.edu/wiki/A08:_DIPFIT#Using_DIPFIT_to_fit_EEG_or_ERP_scalp_maps" target="_blank">http://sccn.ucsd.edu/wiki/A08:_DIPFIT#Using_DIPFIT_to_fit_EEG_or_ERP_scalp_maps</a>)</span>
<span>but I have not</span> <span>got
encouraging results</span><span>.</span><br>
<span>For this reason</span> <span>I ask
you</span> <span>some indication of the</span> <span>method to be followed</span><span>, if it is</span>
<span>necessary or not</span> <span>perform</span>
<span>dipfit</span> <span>of</span> <span>ICA (</span><span>but</span> <span>which
components</span><span> and how should be selected?) or</span> <span>can I use</span> <span>dipfit_erpeeg</span><span>.</span><br>
<span>I really hope</span> <span>in</span>
<span>a</span> <span>help.</span><br>
<span>Thanks in advance</span><span>.</span><span class="HOEnZb"><font color="#888888"><br>
</font></span></span><span class="HOEnZb"><font color="#888888"><br>
<pre cols="72">--
Francesco Sigona
CRIL - Università del Salento
via Pappacoda, 12
73100, Lecce - Italy
web: <a href="http://www.cril.unisalento.it" target="_blank">http://www.cril.unisalento.it</a>
tel.: <a href="tel:%2B39%200832%20332097" value="+390832332097" target="_blank">+39 0832 332097</a>
fax.: <a href="tel:%2B39%200832%20252570" value="+390832252570" target="_blank">+39 0832 252570</a>
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-- <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>
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