[FieldTrip] Headmodel with NeuroScan meshes

[IMALI THANUJA HETTIARACHCHI]

Dear FieldTrip users,



As I have faced problems in creating a head model with MRI's, so I thought to try the MNI head for creating the meshes. I used the NeuroScan software to create the surface meshes and exported them to Matlab. Then tried to crate the head model using ft_prepare_headmodel function.  however the 'om_minverser' stops working and the program terminates.



When I plot the meshes they seem fine to me so I assume that there is no segmenting issues. But Now I get an error as attached in the 'log.txt' from the Matlab workspace, which says about self intersecting meshes. I have attached the Neuroscan exported meshes (innerSkull.mat,outerSkull.mat,skin.mat) and the Matlab function (m_file.txt) that I used in creating the head model.



I really want to generate some simulated EEG data but cannot make anything work. If someone can give a guidance on where I am going wrong in the procedure , that will be highly appreciated.



Many thanks.



Kind regards

Imali

Imali Thanuja Hettiarachchi
PhD Candidate
Centre for Intelligent Systems research
Deakin University, Geelong 3217, Australia.

Mobile : +61430321972
Email: ith at deakin.edu.au<mailto:ith at deakin.edu.au>
www.deakin.edu.au/cisr<http://www.deakin.edu.au/cisr>

[Description: Description: Description: cid:1216BE20-1800-4A47-8B9F-E7B9D94831CD at deakin.edu.au]




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