<div dir="ltr"><div class="gmail_default"><span class="" style="border-collapse:collapse"><div class="gmail_default"><p style="margin-top:0px;margin-right:0px;margin-bottom:0px;margin-left:0px;font:normal normal normal 13px/normal Arial">
</p><p class="MsoNormal"><font class="" face="arial, helvetica, sans-serif"><font class="" color="#000000">Hello Ilaria, hoping the below helps you. Please share your eventual solution when possible, thank you. </font><span class="" style="font-size:small;color:rgb(0,0,0)">All the best!</span></font></p><p class="MsoNormal"><font class="" color="#000000" face="arial, helvetica, sans-serif"><br></font></p><p class="MsoNormal"><font class="" color="#000000" face="arial, helvetica, sans-serif"><br></font></p><p class="MsoNormal"><font class="" color="#000000" face="arial, helvetica, sans-serif">******************************************</font></p><p class="MsoNormal"><font class="" color="#000000" face="arial, helvetica, sans-serif">Most M/EEG software with source estimation capacities has functions for going to MNI space.</font></p><p class="MsoNormal"><font class="" color="#000000" face="arial, helvetica, sans-serif"><br></font></p><p class="MsoNormal"><font class="" color="#000000" face="arial, helvetica, sans-serif">Try contacting the vendor's (EGI) support
team for suggestions, and look through their manuals for information about the
coordinate system of their sfp files, which I believe are 3D cartesian. Please
also examine the pop_writelocs function in eeglab, which allows transformations
of channel locations across various formats (though </font></p><p class="MsoNormal"><font class="" color="#000000" face="arial, helvetica, sans-serif"><br></font></p><p class="MsoNormal"><font class="" color="#000000" face="arial, helvetica, sans-serif">You may also search google for
eeglablist questions related to your question, for example:</font></p>
<p class="MsoNormal"><font class="" color="#000000" face="arial, helvetica, sans-serif"><u style><a href="http://sccn.ucsd.edu/pipermail/eeglablist/2011/004240.html">http://sccn.ucsd.edu/pipermail/eeglablist/2011/004240.html</a></u> </font></p><p class="MsoNormal"><font class="" color="#000000" face="arial, helvetica, sans-serif"><u style><br></u></font></p>
<p class="MsoNormal"><font class="" color="#000000" face="arial, helvetica, sans-serif">The
dipfit function, from Fieldtrip and used in Eeglab, does a registration of
electrode locations to a head volume for dipole localization purposes, and I
believe that involves a conversion of electrode locations to an MNI space, using 10-5 locations from Oostenveld. </font></p><p class="MsoNormal"><font class="" color="#000000" face="arial, helvetica, sans-serif">See for some info: <a href="http://sccn.ucsd.edu/wiki/A08:_DIPFIT">http://sccn.ucsd.edu/wiki/A08:_DIPFIT</a></font></p>
<p class="MsoNormal"><font class="" color="#000000" face="arial, helvetica, sans-serif"> </font></p>
<p class="MsoNormal"><font class="" face="arial, helvetica, sans-serif"><font class="" color="#000000">You may be interested in the following 2 articles:</font><span class="" style="font-size:small;color:rgb(0,0,0)"> A few other articles can easily be found on Google
Scholar.</span></font></p>
<p class="MsoNormal" style="margin-bottom:6pt"><font class="" color="#000000" face="arial, helvetica, sans-serif">Three-dimensional probabilistic
anatomical cranio-cerebral correlation via the international 10–20 system
oriented for transcranial functional brain mapping</font></p><p class="MsoNormal" style="margin-bottom:6pt"></p><p class="MsoNormal" style="margin-top:0px;margin-right:0px;margin-bottom:0px;margin-left:0px"><font class="" color="#000000" face="arial, helvetica, sans-serif"></font></p><p style="margin-top:0px;margin-right:0px;margin-bottom:0px;margin-left:0px;font:normal normal normal 16.9px/normal Times;color:rgb(26,26,24)"><font class="" color="#000000" face="arial, helvetica, sans-serif">
</font></p><p class="MsoNormal" style="text-autospace:none"><font class="" color="#000000" face="arial, helvetica, sans-serif"><span style="font-size:11pt;font-family:'Arial Unicode MS';color:rgb(74,74,74)">10/20,
10/10, and 10/5 systems revisited: Their validity as relative
head-surface-based positioning systems</span></font></p><p class="MsoNormal" style="text-autospace:none"><font class="" color="#000000" face="arial, helvetica, sans-serif"><span style="font-size:11pt;font-family:'Arial Unicode MS';color:rgb(74,74,74)"><br></span></font></p><font class="" color="#000000" face="arial, helvetica, sans-serif">
<p></p></font><p></p><p></p>
<p class="MsoNormal" style="margin-bottom:6pt"><font class="" color="#000000" face="arial, helvetica, sans-serif">You may also benefit from reviewing
the following pages related mention channel locations and head volumes, wherein you might find out about functions that do what you need.</font></p>
<p class="MsoNormal" style="margin-bottom:6pt"><font class="" color="#000000" face="arial, helvetica, sans-serif"><a href="http://fieldtrip.fcdonders.nl/tutorial/headmodel_eeg">http://fieldtrip.fcdonders.nl/tutorial/headmodel_eeg</a></font></p>
<p class="MsoNormal"><font class="" face="arial, helvetica, sans-serif"><font class="" color="#000000"><a href="http://fieldtrip.fcdonders.nl/template/electrode">http://fieldtrip.fcdonders.nl/template/electrode</a> </font><span style="color:rgb(51,51,153);font-size:11pt"></span></font></p><p class="MsoNormal"><font class="" color="#000000" face="arial, helvetica, sans-serif"><br></font></p><p class="MsoNormal"><font class="" face="arial, helvetica, sans-serif"><span class="" style="font-size:small;color:rgb(0,0,0)">******************************************</span><font class="" color="#000000"><br></font></font></p><p class="MsoNormal"><font class="" color="#000000" face="arial, helvetica, sans-serif"><br></font></p><p class="MsoNormal"><span style="font-family:Arial"><font class="" color="#000000"><br></font></span></p>
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