Tutorials

Important notes

Getting started with Brainstorm

Dataset description

The dataset that will be used for tutorials #2 to #10 is a somatotopy experiment recorded with a CTF 151 MEG system.

Please download bst_sample_ctf.zip from the Download section. Unzip it in a folder you will dedicate to original data. It can be anywhere but not in the Brainstorm database or program folder. Example:

File:

bst_sample_ctf.zip

Acquisition system:

CTF MEG, 151 axial gradiometers, La Salpetriere Hospital, Paris

Protocol:

Shuffled electrical stimulations of the thumb fingers from both hands. The idea is to get a map of the primary sensory response on the cortex

Author:

Data provided courtesy of Sabine Meunier

Anatomy directory:

- T1-MRI of the subject in CTF format (.mri).
- Cortex and head surfaces extracted with BrainVISA software(see tutorial)

Datasets directory:

- somMGYO-18av.ds: average response for the stimulation of the right thumb (one subject, 400 trials) .
- somMDYO-18av.ds: average response for the stimulation of the left thumb (one subject, 400 trials)

Observations:

Stimulus occurs at time 0. There's a first tiny wave occuring at about 20ms or so but it's not too clear on all fingers. So if you are to compute cortical maps, start by the 40ms peak which is also of interest and which has much better SNR.

Step by step tutorials

Other useful tutorials

  1. ?Review raw recordings and edit markers

  2. Import and process Neuromag raw recordings

  3. Extract head and cortex surface with BrainVISA

  4. ?More inverse methods

  5. ?Using Brainstorm without the GUI

  6. Cite Brainstorm in your publications

TutorialsOld (last edited 2010-10-11 17:14:20 by cpe-76-168-90-220)