[Eeglablist] How to convert EEGlab real coordinate system to MNI coordinate system

[Arnaud Delorme]

Hi Jody,

This is a relevant question. If you are using the Loreta 2.0 plugin in EEGLAB, it will convert your electrode coordinates to MNI. This plugin was made to export ICA components, but you can replace the content in the text files generated (comp1.txt etc…) by your ERD activity across channels. See this video for a tutorial.

https://www.youtube.com/watch?v=amttvN_Sb6A

Best wishes,

Arno

> On Oct 1, 2018, at 2:54 PM, Jody Zhou <jodzhou at ucdavis.edu> wrote:
> 
> Hi all,
> 
> I want to use sLORETA to conduct source localization of ERD. However, the electrode coordinate template that I use ( the old GSN 129 electrode coordinate)
>  has a different electrode coordinate system (different origin, different spherical direction and organization) than the MNI coordinate system sLORETA uses. So I'm wondering how to convert this coordinate file  to MNI coordinate system. Thanks! 
> 
> Here I link the GSN 129 electrode coordinate elements including the real spherical and cartesian coordinate:  
> 
> https://drive.google.com/file/d/1tI6QWySUDjCC3BoYhE1Hfny2zPnEjpq7/view?usp=sharing
> 
> Best
> Jody
> 
> 
> Best
> Jody
> 
> 
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