Los Angeles, CA, USA: December 5th, 2024

Full-day workshop, prior of the AES2023 Meeting.
This session will be an introduction to Brainstorm for iEEG analysis. Participants will learn how to use Brainstorm and access its new tools on their personal laptops.

General information

Where	University of Southern California
When	Thursdya December 5th, 2024: 8:30-17:30
Instructor	Brainstrom team
Audience	Users interested in analyzing iEEG recordings using Brainstorm. Teaching in English.
Documents	Introduction slides | Walkthrough | Survey

Requirements

In order to make the workshop as efficient as possible, we ask all the attendees to: download, install and test the software and download the workshop dataset on their laptops prior to the workshop.

Installing Brainstorm

Please read carefully the following instructions on:
preparing your laptop for the training

Workshop dataset

In this workshop, we will be working on a SEEG dataset recorded at the Epilepsy Monitoring Unit at UTHealth Houston.

The data is distributed as raw and pre-processed data.

1. raw data is located in the file WorkshopXXX_raw.zip which contains raw SEEG recordings (in EDF format), T1 MRI and CT scan (both in NIfTI format). The raw SEEG recordings correspond to:

   1. Two files containing seizure onset:
      1. Seizure onset with Low-voltage-fast-activity
      2. Seizure with Ictal repetitive spiking
   2. One file with interictal spike, and
   3. One file containing baseline recordings

2. pre-processed data is located in the file WorkshopXXX_precomputed.zip, which contains a Brainstorm protocol with the raw data already pre-processed.

Once you have successfully installed and tested Brainstorm (see previous section), proceed to download the data to be used in the workshop.

1. Download the raw data:

   • TBD

2. Unzip the downloaded raw data on your desktop: it will create a new folder named workshopUTAH_raw

3. Download the pre-processed data. Do not unzip this file:

   • TBD
4. Final check: after following the steps above, you should have 3 folders on your desktop:

   • brainstorm3: the software folder, containing the source code and the compiled executable

   • brainstorm_db: your Brainstorm database (which should be empty for now)

   • workshopXXX_raw: Raw data, for SEEG localization demonstration

   • WorkshopXXX_precomputed.zip: Pre-processed Brainstorm protocol for workshop session

Program

12:30-13:00	Onsite assistance in installing the material for the training session
13:00-13:30	Introduction to Brainstorm (lecture)
13:30-14:35	Loading anatomy and recordings Set anatomy Review RAW recordings Import events
14:35-15:35	Pre-processing Frequency filters Artifact detection Artifact correction with SSP
15:35-15:50	Coffee break
15:50-16:20	Analysis sensor level Import recordings Review trials Trial averages
16:20-16:55	Source estimation Forward model (aka Head model) Noise covariance matrix Source estimation (from EEG and MEG recordings)
16:55-17:15	Analysis source level Cortex parcellations: Atlases and Scouts

We provide a detailed step-by-step walkthrough of the data analyses performed at the training. In addition, results obtained in this workshop can be replicated with this script.

Troubleshooting

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