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Hi,<br>
<br>
This is what I use to get the topography which shows the average of the activity in a window of 410 to 440 ms post stimulus in one subject.
<br>
<br>
<br>
[ALLEEG EEG CURRENTSET ALLCOM] = eeglab;<br>
<p><br>
</p>
<p>EEG = pop_loadset(<span style="color: #7232ad;">'filename'</span>,<span style="color: #7232ad;">'29_CondCong.set'</span>,<span style="color: #7232ad;">'filepath'</span>,<span style="color: #7232ad;">'C:\\Users\\137912\\Desktop\\Analisis\\A1\\'</span>);<br>
</p>
<p><br>
</p>
<p>[ALLEEG, EEG, CURRENTSET] = eeg_store( ALLEEG, EEG, 0 );<br>
</p>
<p><br>
</p>
<p>EEG = eeg_checkset( EEG );<br>
</p>
<p><br>
</p>
<p>figure;pop_topoplot(<span style="color: #7232ad;"><span style="color: #000000;">EEG,1, 410:440,</span>'EGI file epochs pruned with ICA'</span>,[1 1] ,0,<span style="color: #7232ad;">'electrodes'</span>,<span style="color: #7232ad;">'off'</span>);<br>
</p>
<p><br>
</p>
eeglab redraw;<br>
<br>
<br>
What must I do to get the topography of a group of 7 subjects?<br>
<p><br>
</p>
<div style="color: #282828;">
<hr tabindex="-1" style="display: inline-block; width: 98%;">
<div dir="ltr" id="divRplyFwdMsg"><font face="Calibri, sans-serif" color="#000000" style="font-size: 11pt;"><b>De:</b> Makoto Miyakoshi <mmiyakoshi@ucsd.edu><br>
<b>Enviado:</b> martes, 1 de abril de 2014 08:55 p. m.<br>
<b>Para:</b> Andres Munguia Barcenas<br>
<b>Cc:</b> eeglablist@sccn.ucsd.edu<br>
<b>Asunto:</b> Re: [Eeglablist] Topography</font>
<div> </div>
</div>
<div>
<div dir="ltr">Dear Andres,
<div><br>
</div>
<div>Type 'help topoplot' in the command line.</div>
<div>It says:</div>
<div><br>
</div>
<div>topoplot(datavector, EEG.chanlocs)<br>
</div>
<div><br>
</div>
<div>This is pretty simple. Here, datavector should be a column matrix such that</div>
<div><br>
</div>
<div>datavector = mean(mean(sevenSubjectsEEG(:,410:440,:),2),3);</div>
<div><br>
</div>
<div>where sevenSubjectsEEG is each subject's averaged channel x latency stuck in the third dimension, like [channels, latency, subjects], and unit for latency should be in frame and not millisecond (unless your sampling rate is 1000Hz).</div>
<div><br>
</div>
<div>If you need more explanation let us know.</div>
<div><br>
</div>
<div>Makoto</div>
</div>
<div class="gmail_extra"><br>
<br>
<div class="gmail_quote">2014-03-31 12:07 GMT-07:00 Andres Munguia Barcenas <span dir="ltr">
<<a target="_blank" href="mailto:andres.munguiabs@udlap.mx">andres.munguiabs@udlap.mx</a>></span>:<br>
<blockquote class="gmail_quote" style="margin: 0px 0px 0px 0.8ex; border-left: 1px solid #cccccc; padding-left: 1ex;">
<div>
<div style="font-size: 12pt; font-family: calibri,arial,helvetica,sans-serif;">
<p>Hi,</p>
<p><br>
</p>
<p>I was running an experiment with a group 7 subjects. In the analysis, I want to get a topography which shows the average of the group (right now I can get a topography of each subject). Ideally, I would like to see the average of the activity in a window
of 410 to 440 ms post stimulus.<br>
</p>
<p><br>
</p>
<p>How can I get that topography? <br>
</p>
</div>
</div>
<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>
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