[FieldTrip] EEG Source reconstruction: sourcespace and the volume conductor misaligned

Zizlsperger Leopold zizlsperger at gmail.com
Sat Sep 28 15:25:32 CEST 2013


Hi all,
I am following the instructions in the "Source reconstruction of event-related fields using minimum-norm estimate" tutorial closely to do a source-analysis of EEG data using the example MRI. As I am following the tutorial almost unchanged I am not including the script here.

When I re-align the volume conduction model to the sourcespace they are not aligned very well, see screenshot attached. I remember a similar question in the mailing list a while ago but cannot find it...

Is there a way to interactively realign volume conduction model and sourcespace? Re-doing the fiducials did not change the aligment considerably. Also, my volume conduction model looks weird...
I used ft_determine_coordsys on both the vol and the sourcespace, see screenshots attached, too.
Would be nice if you could point me in the right direction.
Thanks in advance.
Leo

----




Dr. med. Leopold Zizlsperger
Klinik für Neurologie
Uniklinik RWTH Aachen
Pauwelsstrasse 30
52074 Aachen
Tel: +49 241 80 35465
lzizlsperger at ukaachen.de

Leopold Zizlsperger, MD
Department of Neurology
RWTH Aachen University
Pauwelsstrasse 30
52074 Aachen, Germany
Tel: +49 241 80 35465
lzizlsperger at ukaachen.de

 
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