Hello,
There is not much in the tutorial pages, but lots of information on this forum. You can search it for “simulate” or “simulation” to find many examples.
You procedure is the following:
- Define some source activity, with the process "Simulate > Simulate generic signal"
http://neuroimage.usc.edu/brainstorm/Tutorials/TimeFrequency#Simulation - Create a scout to which you want to set this activity (you can use the menu “Scout > New: Coordinates” to create a new ROI based on MNI coordinates)
http://neuroimage.usc.edu/brainstorm/Tutorials/Scouts#Scout_toolbar_and_menus - Associate the signal with the cortex patch and use this to simulate EEG or MEG recordings, with process “Simulate > Simulate recordings from scouts” (select the simulated signal in Process1, and select the scout in the process options)
Alternatively, you can create your own source matrix and then use the menu “Model evaluation > Simulate recordings”:
- Compute some random source results in Brainstorm with the option “Full sources”
- Export it to Matlab and replace the field “ImageGridAmp” with your own data. If you change the number of “time points” (second dimension of the matrix), you must update the field .Time as well (length(Time) must be equal to size(ImageGridAmp,2))
- Change the .Comment field as well, to identify the file in the database.
- Right-click on the folder > File > Import from Matlab, to import your modified structure
- Simulate recordings: http://neuroimage.usc.edu/brainstorm/Tutorials/SourceEstimation#Model_evaluation
Cheers,
Francois