
<html><head><meta http-equiv="Content-Type" content="text/html; charset=utf-8"></head><body style="word-wrap: break-word; -webkit-nbsp-mode: space; line-break: after-white-space;" class="">Dear Uri,<div class=""><br class=""><div><blockquote type="cite" class=""><div class=""><div dir="ltr" class=""><div class="">That worked perfectly, thank you! Are there guidelines for use of mesh inflation?</div></div></div></blockquote>no there aren’t any.<br class=""><blockquote type="cite" class=""><div class=""><div dir="ltr" class=""><div class=""> E.g., does dilation by two voxels greatly bias source reconstruction? </div></div></div></blockquote>no<br class=""><blockquote type="cite" class=""><div class=""><div dir="ltr" class=""><div class="">If one inflates a subject's mesh, must one then inflate all other subjects' meshes to the same degree? </div></div></div></blockquote>I would do as minimum as possible and only there when needed.</div><div>Best</div><div>tzvetan</div><div><br class=""><blockquote type="cite" class=""><div class=""><div dir="ltr" class=""><div class=""><br class=""></div><div class="">Thank you again,</div><div class="">Uri <br class=""><div class="gmail_extra"><br class=""><div class="gmail_quote">2018-07-02 16:54 GMT+02:00 Tzvetan Popov <span dir="ltr" class=""><<a href="mailto:tzvetan.popov@uni-konstanz.de" target="_blank" class="">tzvetan.popov@uni-konstanz.de</a><wbr class="">></span>:<br class=""><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex"><div style="word-wrap:break-word;line-break:after-white-space" class="">Dear Uri,<div class=""><br class=""></div><div class="">the solution to the problem (mesh inflation) is outlined in this tutorial: <a href="http://www.fieldtriptoolbox.org/tutorial/natmeg/dipolefitting?s%5B%5D=natmeg&s%5B%5D=headmodel#procedure" target="_blank" class="">http://www.fieldtrip<wbr class="">toolbox.org/tutorial/natmeg/<wbr class="">dipolefitting?s[]=natmeg&s[]=<wbr class="">headmodel#procedure</a></div><div class=""><br class=""></div><div class="">Scroll down to the section "Construct the EEG volume conduction model"<h3 class="m_-6691899920915690959m_6249598690661499843sectionedit18" id="m_-6691899920915690959m_6249598690661499843construct_the_eeg_volume_conduction_model"><a class="m_-6691899920915690959m_6249598690661499843anchorjs-link" href="http://www.fieldtriptoolbox.org/tutorial/natmeg/dipolefitting?s[]=natmeg&s[]=headmodel#construct_the_eeg_volume_conduction_model" style="font-family:anchorjs-icons;font-variant-ligatures:normal;font-variant-east-asian:normal;font-weight:normal;line-height:1;padding-left:0.375em" target="_blank"></a></h3><div class="">Good luck,</div><div class="">tzvetan</div><div class=""><br class=""></div><div class=""><br class=""><blockquote type="cite" class=""><div class=""><div class="m_-6691899920915690959h5"><div class="">Am 02.07.2018 um 14:37 schrieb Uri Eduardo Ramírez Pasos <<a href="mailto:urieduardo@gmail.com" target="_blank" class="">urieduardo@gmail.com</a>>:</div><br class="m_-6691899920915690959m_6249598690661499843Apple-interchange-newline"></div></div><div class=""><div class=""><div class="m_-6691899920915690959h5"><div dir="ltr" class="">Dear Fieldtrippers,<div class=""><br class=""></div><div class="">I have followed the Salzburg tutorial (<a href="http://www.fieldtriptoolbox.org/tutorial/salzburg" style="font-size:12.800000190734863px" target="_blank" class="">http://www.fieldtriptoolbox.o<wbr class="">rg/tutorial/salzburg</a><span class="m_-6691899920915690959m_6249598690661499843gmail-m_2180451013415369572sew1iwc8sn4inn9" style="font-size:12.800000190734863px"></span><span class="m_-6691899920915690959m_6249598690661499843gmail-m_2180451013415369572sew8szmhvxp11k5" style="font-size:12.800000190734863px"></span><span style="font-size:12.800000190734863px" class="">) to conduct EEG source reconstruction, but it doesn't work with some subjects' segmented mri files (whether I use dipoli or bemcp), due to intersections between surfaces. </span></div><div class=""><span style="font-size:12.800000190734863px" class=""><br class=""></span></div><div class=""><span style="font-size:12.800000190734863px" class="">What are the typical trouble-shooting steps for this situation? I tried using a lower number of vertices for the mesh ([800 800 600]), to no avail. Are there any guidelines for the number of vertices? </span></div><div class=""><span style="font-size:12.800000190734863px" class=""><br class=""></span></div><div class=""><span style="font-size:12.800000190734863px" class="">The number of subjects in my study is limited, so I would be loathe to exclude any subject from the analysis.</span></div><div class=""><span style="font-size:12.800000190734863px" class=""><br class=""></span></div><div class=""><span style="font-size:12.800000190734863px" class="">Best regards,</span></div><div class=""><span style="font-size:12.800000190734863px" class=""><br class=""></span></div><div class=""><span style="font-size:12.800000190734863px" class="">Uri Ramirez</span></div><div class=""><span style="font-size:12.800000190734863px" class="">University of Würzburg</span></div></div></div></div>

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