[Simnibs-discuss] Error ROI Analysis Using Surfaces

[Oula Puonti]

Hi Will,

If the annotation lives on the fsaverage surface (and is split between
the left and right hemis), the mapping to the subject cortical surface
should work. The subject_atlas function does not know the name 'DK68'
however, so you should indeed change that in the code.

As far as I know the fsaverage space has not changed between FS
versions 6.0 and 7.3.2 so if you manage to map the annotation to the
fsaverage surface it should work in simnibs.

I can also have a look at the annotation file if you send it to me.

Best,
Oula
 

On Fri, 2023-03-03 at 21:06 +0800, Will Shao wrote:
> Dear all,
>    SimNIBS has really helped me a lot, I would like to thank all the
> developers . I am a graduate student from China. I have a problem
> when using SimNIBS. I really hope that all the developers can help
> me.
> When I use "ROI Analysis Using Surfaces", I want to use DK68 which is
> not provided by SImNIBS for analysis, and then I added DK68.annot in
> \fsaverage_atlase and added DK68 information in  subject_atlas, but
> this problem occurred in my operation
>   This is very disturbing to me. I guess it may be I should rewrite a
> paragraph in subject_atlas appropriately, or the DK68.annot I added
> (segmented according to MNI152 in FreeSurfer) does not match the
> original annotation file information of SimNIBS.( It means that it is
> possible that the developer was split according to MNI305 using
> FreeSurfer 6.0, while I was split according to MNI155 FreeSurfer
> 7.3.2, and the information contained in the split may vary
> greatly).Because I loaded the original annotation file of SimNIBS
> into the segmented cerebral cortex, and the color information of the
> brain area is all chaotic, as shown in the figure.
>  
>    I really hope that the developers can help me solve this problem.
> I am very grateful for this.
> 
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