CTF electric phantom

Authors: Francois Tadel, Elizabeth Bock

This tutorial explains how to use recordings from the CTF electric phantom to test dipole fitting functions.

Contents

Phantom description

[TODO] Pictures

[TODO] Nature of the dipole that is generated

[TODO] References

Requirements: You have already followed all the introduction tutorials and you have a working copy of Brainstorm installed on your computer.
Go to the Download page of this website, and download the file: sample_phantom.zip
Unzip it in a folder that is not in any of the Brainstorm folders (program folder or database folder)
Start Brainstorm (Matlab scripts or stand-alone version)
Select the menu File > Create new protocol. Name it "TutorialPhantom" and select the options:
- "No, use individual anatomy",
- "No, use one channel file per acquisition run (MEG)".

In the Matlab command window: type "generate_ctf_phantom".
This creates a new subject Phantom and generates the "anatomy" for this device: one volume and a few surfaces representing the geometry of the phantom.
You can display the MRI and surfaces as presented in the introduction tutorials.

Switch to the "functional data" view.
Right-click on the subject folder > Review raw file.
- Select the file format: "MEG/EEG: CTF (*.ds)"
- Select all the folders in: Sub01/MEEG

Available in the Brainstorm distribution: brainstorm3/toolbox/script/tutorial_phantom.m