Thank U for every one who reading this question!
I used the multi-modal datasets in the Brainstorm tutorial:the MEEG and fMRI with 16 subjects.
Then i have got the gain matrix(leadfield),the next step i plan to do is use the mesh grid of vertex divided by forward model to get the adjacency matrix .
But i don't know how to get this matrix, does Brainstorm have some function to caculate the adjacency matrix?
Are you talking about the vertex-vertex adjacency matrix, that tells you which vertices are connected to one given vertex in the surface mesh?
This is stored in the VertConn matrix in the surface file:
https://neuroimage.usc.edu/brainstorm/Tutorials/ExploreAnatomy#On_the_hard_drive:_Surface
Thank you for your kindly reply! I read the tutorial you offered, it's very useful and inspiration for me! However i still have a question: how can i get the VertConn matix?
the link of data processing tutorial i learned is : https://neuroimage.usc.edu/brainstorm/Tutorials/VisualSingle
there is no tess_xxx .mat data in any files ,or should i use the derivative files, which contains freeSurfer data, to do some extra processing?
BTW, if there has some methods to simulate simultaneous EEG-fMRI signals? I read the introduction that refers simulating EEG signals with source information. But i really need some simulated EEG-fMRI signals to verify my algorithm. Therefore i will be very grateful if you can offer some clue of simulation method.
Thank you for your kindly reply! I read the tutorial you offered, it's very useful and inspiration for me! However i still have a question: how can i get the VertConn matix?
This is in the cortex surface file after your import the FreeSurfer anatomy into the Brainstorm database.
If you want to use Brainstorm, I recommend you start by following the introduction tutorials from the beginning and using the example dataset provided:
https://neuroimage.usc.edu/brainstorm/Tutorials
BTW, if there has some methods to simulate simultaneous EEG-fMRI signals?
No, I'm not aware of any program that can simulate EEG-fMRI signals.
Thank you for your patience reply and help! I have followed the tutorial and solved my problem!
Thank you very much!