Taller en vivo de Brainstorm y Q&A: Junio 2, 2021

Dos horas de taller de Brainstorm y, sesión de preguntas y respuestas. En Zoom.

Information general

Programa

Este taller está basado en los temas detalladamente presentados en los tutoriales Get started.

Un vistazo a Brainstorm

• Interfaz principal
• Arquitectura de software
• Workflow típico

Datos anatómicos

• Explorador de la base de datos
• Volúmenes MRI y superficies
• Anatomía por default (Default anatomy)

Datos funcionales

• Explorador de la base de datos
• Inspeccionando las señales
• Visualización de señales, grupos de sensores y opciones
• Eventos y remoción de artefactos con SSP
• Importando señales relacionadas con evento
• Problema directo (modelo de la cabeza)
• Problema inverso (localización de fuentes cerebrales) y normalización
• Visualización de fuentes, regiones de interés y opciones

Pestaña de procesamiento

• Process1 y Process2
• Categorías de procesos
• Pipeline editor (procesamiento en serie)
• Opciones de los procesos y ayuda en línea
• De pipeline a script

Sesión de preguntas y respuestas

Prepare your laptop for the workshop (optional)

Due to time limitation this workshop is not hands-on, thus it is not required to install Brainstorm in your computer. However, if you decide to install Brainstorm and give try before the workshop, follow the instructions below.

Important notes

• Working with MEG/EEG/SEEG recordings involves a lot of computational resources and large display windows. Therefore we recommend that you bring a laptop with a decent processing capacity, 4Gb RAM, a 64bit operating system, and a screen larger than 13".

• You would add to your comfort by bringing an external mouse. Most of the manipulations are done with the mouse, and some involve an intensive use of the mouse wheel/scrolling.

• Don't forget your power adapter!

Installation instructions

Before coming to the workshop, you need to download the software and the tutorial dataset from the Brainstorm website (330Mb). To streamline troubleshooting during the session, please save all the downloaded files on your Desktop.

1. From the Brainstorm Download page, log in or create a Brainstorm account

2. Download the following files to your Desktop folder:

   • Brainstorm software: brainstorm_YYMMDD.zip (60 Mb)

   • Tutorial dataset: sample_introduction.zip (330 Mb)

3. If you already have Brainstorm, make sure that the version was released after May 1st.

4. Unzip the two downloaded files on your desktop
5. Delete the two downloaded zip files

6. Create a folder "brainstorm_db" on your Desktop

7. Final check: you should have now 3 folders on your desktop:

   • brainstorm3: Program folder, with the source code and the compiled executable

   • brainstorm_db: Brainstorm database (empty)

   • sample_introduction: Example dataset used during the training session

8. Run Brainstorm, to make sure it works correctly on your computer (read the following section)

Running Brainstorm for the first time

With Matlab

1. Matlab versions >= 2014b are faster and produce nicer graphics: consider upgrading if possible

2. Start Matlab

3. Do NOT add brainstorm3 folder to your Matlab path: this will be done automatically

4. Go to the brainstorm3 folder
5. Type "brainstorm" in the command window
6. When asked for the Brainstorm database folder, pick the "brainstorm_db" you have just created

Without Matlab

1. The instructions below are valid for the following operating systems:

   • Windows: Any version (details)

   • Linux: Ubuntu 14.04+, RedHat 6.x+, Debian 7.x, SUSE 11.3+ (details)

   • MacOS: 10.9.5 (Mavericks), 10.10 (Yosemite) (details)

   • If your system is not listed here, try with another version: 2012b, 2013b, 2014b, 2016a, ...

2. Download the MCR R2015b (9.0) for your operating system: Mathworks website

3. Install the MCR:

   • Windows: Double-click on the .exe and follow the instructions

   • MacOS: Click on the zip file to unzip it, then click on "InstallForMacOSX"

   • Linux: From a terminal, unzip .zip, then run ./install

4. Run the program in brainstorm3/bin/R2015b/

   • Windows: Double-click on brainstorm3.bat

   • MacOS: Double-click on brainstorm3.command and wait for instructions

   • Linux: From a terminal, run:
     cd brainstorm3/bin/R2015b/
     ./brainstorm3.command

5. Troubleshooting for MacOS or Linux:

   • On recent versions of MacOS, you may get an error message "Application can't be opened because it is from an unidentified developer". This message would appear for all the programs that were not downloaded from the Apple app-store. To go around this verification: right-click on the application > Open, then click on the Open button.

   • From a terminal, make sure that the file "brainstorm3.command" is executable:
     chmod a+x brainstorm3.command

   • If nothing happens, run:
     ./brainstorm3.command MCR_DIR
     MCR_DIR is the MCR 9.0 folder (ex: /Applications/MATLAB/MCR/v90)

   • Try with another binary release: 2012b, 2013b, 2014b, 2016a, ...

6. Troubleshooting for Windows:

   • Your current user may not have the necessary privileges. If you are an administrator for your computer, you can do the following: right-click on brainstorm3.bat > Run as administrator.

   • If you are not the administrator of your computer and Matlab or the MCR are not installed in the standard paths, Brainstorm may have trouble finding them. To specify manually the path of the MCR or Matlab folder, right-click on brainstorm3.bat > Edit. Fill the second line of the script (Example: @SET MATLABROOT="C:\Program Files\MATLAB\R2015b"), save the file, and try to execute it again.

7. On Linux or MacOS, you may be asked to select the folder where you installed the MCR.
8. When asked for the Brainstorm database folder, pick the "brainstorm_db" you have just created.

Make sure it works

In order to check if Brainstorm works properly or your computer, please follow these instructions:

• Create a new protocol: Menu File > New protocol.
  Set the name to "Test", don't change the other default options.

• In the folder "Default anatomy", double-click successively on the files: MRI, head, cortex_15002V
• It should open the figures below, make sure they work correctly:
  • Click in the MRI Viewer to move the slices
  • Click+move your mouse in the 3D figure to rotate

  • Zoom in/out with the mouse wheel or the two-finger scroll on MacBook pads

  • The head surface should be transparent, with the brain visible through it

  

Troubleshooting

For any technical problem, please contact Raymundo Cassani ( raymundo.cassani@mcgill.ca )