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<p class="MsoNormal"><span lang="EN-US">Merry Christmas !<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US"><o:p> </o:p></span></p>
<p class="MsoNormal"><span lang="EN-US">I have 12 .set-files which are all epoched for the same condition. I wish to produce an unweighted average, and to be able to use all the plot options in eeglab, specifically the timtopo-function (eeglab -> plot -> Channel
ERP(s) -> with scalp map). <o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US"><o:p> </o:p></span></p>
<p class="MsoNormal"><span lang="EN-US">I have by now tried several different solutions:<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US"><o:p> </o:p></span></p>
<p class="MsoListParagraph" style="text-indent:-18.0pt;mso-list:l0 level1 lfo1"><![if !supportLists]><span lang="EN-US"><span style="mso-list:Ignore">1.<span style="font:7.0pt "Times New Roman"">
</span></span></span><![endif]><span lang="EN-US">From my knowledge ERPlab requires .erp-files, which I do not have, and they are created after epoching by eeglab which I cannot do because the .set-files are already epoched.
<o:p></o:p></span></p>
<p class="MsoListParagraph"><span lang="EN-US"><o:p> </o:p></span></p>
<p class="MsoListParagraph" style="text-indent:-18.0pt;mso-list:l0 level1 lfo1"><![if !supportLists]><span lang="EN-US"><span style="mso-list:Ignore">2.<span style="font:7.0pt "Times New Roman"">
</span></span></span><![endif]><span lang="EN-US">I have also tried the ‘study’ in eeglab: file -> create study -> simple ERP study -> load datasets -> plot ERP(S) -> the plots are clearly visible for all electrodes , but I haven’t been able to use the timptopo-function
on the grand average. Only the ‘Plot ERP(s)’-option is available for some reason.
<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US"><o:p> </o:p></span></p>
<p class="MsoListParagraph" style="text-indent:-18.0pt;mso-list:l0 level1 lfo1"><![if !supportLists]><span lang="EN-US"><span style="mso-list:Ignore">3.<span style="font:7.0pt "Times New Roman"">
</span></span></span><![endif]><span lang="EN-US">Lastly I have tried to import a text file with the Grandaverage ERP for each electrode, but eeglab does not allow timtopo on this dataset. I think it only runs timtopo on datasets that are not yet averaged (and
contain all epochs). <o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US"><o:p> </o:p></span></p>
<p class="MsoNormal"><span lang="EN-US">Please, do you have any suggestions for this issue ? I have already succeeded using the scalp map on the weighted grandaverage by concatenating all epochs, but as explained I’m unsure how to do it when unweighted, but
I’m sure it is possible ? <o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US"><o:p> </o:p></span></p>
<p class="MsoNormal"><span lang="EN-US">Regards<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US">Camilla <o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US" style="font-size:10.0pt;color:#595959;mso-fareast-language:DA">___________________________________________<o:p></o:p></span></p>
<p class="MsoNormal"><b><span lang="EN-US" style="font-size:10.0pt;color:#595959;mso-fareast-language:DA">Camilla Arndal Rotvel<o:p></o:p></span></b></p>
<p class="MsoNormal"><span lang="EN-US" style="font-size:10.0pt;color:#595959;mso-fareast-language:DA">Ph.D. student at DuPont Nutrition Biosciences<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US" style="font-size:10.0pt;color:#595959;mso-fareast-language:DA">Edwin Rahrs Vej 38, DK-8220 Brabrand<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-GB" style="font-size:10.0pt;color:#595959;mso-fareast-language:DA"> <o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-GB" style="font-size:10.0pt;color:#595959;mso-fareast-language:DA">Aarhus University<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-GB" style="font-size:10.0pt;color:#595959;mso-fareast-language:DA">Edison, Room 201, Finlandsgade 22, DK-8200 Aarhus N</span><span lang="EN-GB" style="font-size:10.0pt;color:#0D0D0D;mso-fareast-language:DA"><o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-GB" style="font-size:10.0pt;color:#595959;mso-fareast-language:DA"><o:p> </o:p></span></p>
<p class="MsoNormal"><span lang="EN-GB" style="font-size:10.0pt;color:#595959;mso-fareast-language:DA">Phone : + 45 21543280<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="PT-BR" style="font-size:10.0pt;color:#595959;mso-fareast-language:DA">E-mail :
<a href="mailto:caro@eng.au.dk"><span style="color:#0563C1">caro@eng.au.dk</span></a><o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-GB" style="font-size:10.0pt;color:#595959;mso-fareast-language:DA">___________________________________________</span><span style="color:#595959;mso-fareast-language:DA"><o:p></o:p></span></p>
<p class="MsoNormal"><o:p> </o:p></p>
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