<html><head></head><body style="word-wrap: break-word; -webkit-nbsp-mode: space; -webkit-line-break: after-white-space; ">Dear Kirti,<div><br></div><div>you need to coregister your EGI montage with the head model. This usually involve simple rotation and stretching. You may do that from the EEGLAB graphic interface and then look at the automatically generated command line calls. Note that when you use the graphic interface, EEGLAB should recognize your montage and automatically fill in a basic transformation matrix.</div><div><br></div><div>For more information see</div><div><br></div><div><a href="http://sccn.ucsd.edu/wiki/Chapter_06:_Data_Averaging#Plotting_ERP_data_as_a_series_of_3-D_maps">http://sccn.ucsd.edu/wiki/Chapter_06:_Data_Averaging#Plotting_ERP_data_as_a_series_of_3-D_maps</a></div><div><br></div><div>Best,</div><div><br></div><div>Arno</div><div><br><div><div><div>On 14 Aug 2013, at 16:48, Makoto Miyakoshi wrote:</div><br class="Apple-interchange-newline"><blockquote type="cite"><meta http-equiv="Content-Type" content="text/html; charset=iso-8859-1"><div dir="ltr">Dear Kirti,<div><br></div><div>Can you tell us which system generated the .data file?</div><div><br></div><div>Makoto</div></div><div class="gmail_extra"><br><br><div class="gmail_quote">2013/8/13 Kirti Srivastava <span dir="ltr"><<a href="mailto:kirti.sri1987@gmail.com" target="_blank">kirti.sri1987@gmail.com</a>></span><br>
<blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex"><div dir="ltr">can please any one tell me how i can open . DATA file into MATLAB. </div><div class="HOEnZb"><div class="h5">
<div class="gmail_extra"><br><br><div class="gmail_quote">On Tue, Aug 13, 2013 at 7:02 AM, Makoto Miyakoshi <span dir="ltr"><<a href="mailto:mmiyakoshi@ucsd.edu" target="_blank">mmiyakoshi@ucsd.edu</a>></span> wrote:<br>
<blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex"><div dir="ltr">Dear Ingrid and Arno,<div><br></div><div>If you are using the template channel locations and not the digitized ones, I don't why you got such a strange plot (actually I don't even know if your plot is wrong).</div>
<div><br></div><div>The 3D plot head model should have undergone a revision recently. Let me ask Arno if he knows anything about it.</div><div><br></div><div>Makoto</div></div><div class="gmail_extra"><br><br><div class="gmail_quote">
2013/8/7 Ingrid Nieuwenhuis <span dir="ltr"><<a href="mailto:ingrid.nieuwenhuis@gmail.com" target="_blank">ingrid.nieuwenhuis@gmail.com</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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<div dir="ltr"><div><div><div>Hello everyone,<br><br></div>I am trying to make a beautiful
3D topoplot on the head using headplot. I have 128 channel EGI data,
GSN-HydroCel-128.sfp layout. When I plot the electrode positions they
are not correct, see the picture here:<a href="https://www.dropbox.com/s/g4b1uvwlgof63cm/headplot_GSN-HydroCel-128.jpg" target="_blank">https://www.dropbox.com/s/g4b1uvwlgof63cm/headplot_GSN-HydroCel-128.jpg</a>. It looks as if the net is not
pulled down enough: the electrodes that should be on the cheeks way
under the eyes are located on the eye balls, and also the ear in the
picture is not in the ear hole of the net. All the electrodes are too high up.<br>
<br></div><div>I've created the spline file with the option 'sfp' for
'filetype' as I read that sfp data format is supported. I used the
standard EGI electrode location file GSN-HydroCel-128.sfp, after
removing the FidNz, FidT9, FidT10 place holders. Does any one know why
this happens, and how I can fix it? <br>
<br>I'm new to EEGlab (normally use FieldTrip). I haven't used the GUI but used code:<br><br></div>% step 1 create spline file<br><div>elocs = readlocs('C:\Users\Ingrid\Documents\MATLAB\FieldTrip\template\electrode\GSN-HydroCel-128.sfp', 'filetype', 'sfp');<br>
splinefile = [cur_path_MLD, 'EEGLAB_splinefiles', filesep, 'EGI_128.spl'];<br>headplot('setup', elocs, splinefile);<br><br></div><div>% step 2 test the electrode locations<br></div><div>splinefile = [cur_path_MLD, 'EEGLAB_splinefiles', filesep, 'EGI_128.spl'];<br>
figure;<br>headplot(rand(128,1), splinefile) <br><br></div>Thanks a lot!<span><font color="#888888"><br></font></span></div><span><font color="#888888">Ingrid<br></font></span></div>
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-- <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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</div></div></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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