Simulations
Author: Francois Tadel
This tutorial addresses everything that can be called "simulation" in Brainstorm: simulation of simple signals, simulation of full source maps from a few scouts, simulation of MEG/EEG recordings from source maps (real or synthetic). Its goal is to group all the information that was spread across multiple tutorials and forum posts.
Contents
Simulate signals
You have no data in your database. Some process in the Simulate group can generate signals and save them in files in the protocol. Because you start from nothing, the Process1 list needs to be empty. Click on Run and try the following processes.
Simulate > Simulate generic signals
Simulate >
Generate full source maps from scout signals
Simulate MEG/EEG recordings from real sources
Simulate MEG/EEG recordings from simulated dipoles
These examples are based on the introduction tutorials, but can easily be transposed to any study. The inputs you need to provide to the process depend on the type of orientation constrains
Additional documentation
A great simulation article was published by Prof. Debener's neuropsychology lab in Oldenburg. It uses Brainstorm to evaluate and improve the design of ear-EEG devices. All the Matlab/Brainstorm scripts used in this study are available on figshare, together with some videos illustrating the simulations that were done.
Meiser A, Tadel F, Debener S, Bleichner MG
The Sensitivity of Ear-EEG: Evaluating the Source-Sensor Relationship Using Forward Modeling
Brain Topography, Aug 2020