MEG Software and Analysis

MEG Data Analysis

This section covers all aspects of MEG data analysis. The following pages assume that you have AFNI installed and have a reasonably good idea of how to use it.

• The CTF Tools in a Singularity Container

• Accessing CTF Datasets from Python

• Time Frequency Analysis Tools

• Head Localization and MRI Co-Registration

• Source Localization - the SAM pipeline

• Fun Stuff - How to make a movie

• Other Software packages

Basic Tutorials for New/Inexperienced Researchers

Most MEG Core scripts are written in bash, which is the command line interface to Linux. Python is a more powerful programming language, and Tom and Jeff have written some of our scripts in Python, but you don't really need to know how they work, just what they do. The AFNI tutorial below is geared towards fMRI/BOLD analysis. For MEG analysis you can ignore all the BOLD things, we just use it for statistics and display of the final source reconstruction results. If you want to go more in depth, Tom can explain the ones we use. Biowulf can be employed later when you want it all to go faster.

• HPC: Introduction to Linux -- https://hpc.nih.gov/training/handouts/Introduction_to_Linux.pdf
• HPC: Bash Class -- https://hpc.nih.gov/training/bash_class/
• Python Tutorial -- https://docs.python.org/3/tutorial/
• AFNI Introduction -- https://andysbrainbook.readthedocs.io/en/latest/AFNI/AFNI_Short_Course/AFNI_fMRI_Intro.html
• HPC: Introduction to Biowulf -- https://hpc.nih.gov/training/intro_biowulf

Stimulus Presentation Software

PsychoPy: Psychology software in Python PsychoPy is an open-source application that allows you to run a wide range of neuroscience, psychology and psychophysics experiments. It’s a free, powerful alternative to Presentation™ or to e-Prime™, written in Python (a free alternative to Matlab™ ).

• Pyschopy documentation for release 1.90.2

Presentation: NeuroBehavioral Systems (NBS), Inc. Presentation® is a stimulus delivery and experiment control program for neuroscience written for Microsoft Windows.

• Presentation online documentation

E-prime 3: Psychology Software Tools E-Prime® 3.0 software for behavioral research. Build your own experiments using E-Prime’s easy-to-use graphical interface. Design, collect, and analyze data – all within a few hours!

• E-Prime 3.0 website

Miscellaneous Documentation

• SensLayout-275 — a color picture showing the sensor names and relative locations (ps).
• SensLayout-275 - a color picture showing the sensor names and relative locations (pdf).
• File Formats - CTF MEG data file format