Generating simulated cortical activity

Hi,
I am new with Brainstorm, currently studying the tutorials; but I would like to know if it is possible to do something like this:

generate two different simulated cortical activities (in [I]all[/I] the cortex) - as an example, the former to “simulate” a resting state /baseline and the latter to “simulate” a task (e.g. the baseline itself with a greater activity in a specific area), in order to apply forward/inverse problem and contrast the two conditions, showing the task’s specific area.

And, also, if it is possible to generate [I]cerebral[/I] activities, aka without limiting the problem to the cortex.

Then, I will study [I]how[/I] to do these simulated activities :slight_smile: (probably, starting from real data?)

Thank you,
Stefano

Hi Stefano,

Yes, you can define some source activity, associate it with an area of the cortex, and use this to simulate EEG or MEG recordings.
You can do it using a volume source model, but it will be a bit more complicated.

You can find examples further in the introduction tutorials:
http://neuroimage.usc.edu/brainstorm/Tutorials/TimeFrequency#Simulation
http://neuroimage.usc.edu/brainstorm/Tutorials/Statistics#Convert_statistic_results_to_regular_files
http://neuroimage.usc.edu/brainstorm/Tutorials/SourceEstimation#Model_evaluation

And discussions on the forum:
http://neuroimage.usc.edu/forums/showthread.php?2420-Questions-about-eeg-simulation

Francois