<html><head></head><body><div class="yahoo-style-wrap" style="font-family:Helvetica Neue, Helvetica, Arial, sans-serif;font-size:16px;"><div dir="ltr" data-setdir="false">Dear Fieldtrip Community,</div><div dir="ltr" data-setdir="false"><br></div><div dir="ltr" data-setdir="false">I am hoping to run MEG sources using a 5-comp segmentation + FEM volume conductance model using the HCP data. </div><div dir="ltr" data-setdir="false"><br></div><div dir="ltr" data-setdir="false">Some issues:</div><div dir="ltr" data-setdir="false"><br></div><div dir="ltr" data-setdir="false">1) I don't know if this is possible, given that some of the important aspects of the data (e.g., channel location files) are embedded in the already run sources (I think using BEM). Can I just use a default here? Somewhere I found that the default should be under megaconnectome/template, but I didn't see a channel location file there, or maybe I am missing it. </div><div dir="ltr" data-setdir="false"><br></div><div dir="ltr" data-setdir="false">2) In one of the tutorials, it mentions that individual MRIs are not available, but I was able to download them from the HCP data repository, so I don't think this should be an issue.</div><div dir="ltr" data-setdir="false"><br></div><div dir="ltr" data-setdir="false">3.) I have run into some issues with the 5-comp FEM tutorial for MEG data here: </div><div dir="ltr" data-setdir="false"><a href="https://www.fieldtriptoolbox.org/workshop/ohbm2018/forward/" rel="nofollow" target="_blank" class="enhancr_card_5090395007">Solving the EEG and MEG forward problem using the finite element method - FieldTrip toolbox</a><br></div><div><br></div><div dir="ltr" data-setdir="false">- First, <span style="font-family: Courier;">ft_sourceplot(cfg, seg_i); </span></div><div dir="ltr" data-setdir="false"><span style="font-family: Courier;">returns the error </span></div><div dir="ltr" data-setdir="false"><span style="font-family: Courier;">"</span>Error using ft_sourceplot (line 695) no anatomy is present and no functional data is selected, please check your cfg.funparameter"</div><div dir="ltr" data-setdir="false"><span style="font-family: Courier;"><br></span></div><div dir="ltr" data-setdir="false"><span style="font-family: Courier;">- Second, I don't know why the 3 compartment model is run before the 5 compartment model, and there's a duplicate command there fo seg_i under the 5-comp model.</span></div><div dir="ltr" data-setdir="false"><span style="font-family: Courier;"><br></span></div><div dir="ltr" data-setdir="false"><span style="font-family: Courier;"><br></span></div><div dir="ltr" data-setdir="false">4) I have had tons of errors trying to get 'duneuro' working. Is it even possible to run this on a Mac? I think many neuroimagers use Mac/PC, and we would like to use this software. Is it possible on Mac? Or must it be run via Linux ? Mostly, I am not even sure where to begin with the installation of that software, and I have 10+ years getting tricky neuroimaging software (e.g., Circos) running... but it could just be an issue with Mac Big Sur.</div><div dir="ltr" data-setdir="false"><span style="font-family: Courier;"><br></span></div><div dir="ltr" data-setdir="false"><span style="font-family: Courier;">Thank you for your help.</span></div><div dir="ltr" data-setdir="false"><span style="font-family: Courier;"><br></span></div><div dir="ltr" data-setdir="false"><span style="font-family: Courier;">- Joe </span></div><span><div><br></div></span><div dir="ltr" data-setdir="false"><br></div><div dir="ltr" data-setdir="false"><br></div></div></body></html>