Welcome to the FieldTrip website

FieldTrip is the MATLAB software toolbox for MEG, EEG and iEEG analysis, which is released free of charge as open source software under the GNU general public license. FieldTrip is developed by members and collaborators of the Donders Institute for Brain, Cognition and Behaviour at Radboud University, Nijmegen, the Netherlands.

Please cite the reference paper when you have used FieldTrip in your study.

Robert Oostenveld, Pascal Fries, Eric Maris, and Jan-Mathijs Schoffelen. FieldTrip: Open Source Software for Advanced Analysis of MEG, EEG, and Invasive Electrophysiological Data. Computational Intelligence and Neuroscience, 2011; 2011:156869.

To get started, head over to the getting started documentation and the tutorials.

Latest release

The latest code developments can be tracked in detail on GitHub.

14 June, 2024

FieldTrip version 20240614 has been released with improvements for FieldLine and Cerca OPM data, reading of fif files, defacing of meshes, MEF format support, SPM path handling, Paxinos coordinate system, Apple silicon mex files, and a lot of other things. See GitHub for the detailed list of updates.

Recent citations

These are recent citations on Pubmed, you can find a more complete list on Google Scholar.

Early parafoveal semantic integration in natural reading

Pan Y, Frisson S, Federmeier KD, Jensen O eLife, 2024 Jul 5; 12:RP91327.

Electrophysiological Correlates of Dentate Nucleus Deep Brain Stimulation for Poststroke Motor Recovery

Gopalakrishnan R, Cunningham DA, Hogue O, Schroedel M, Campbell BA, Baker KB, Machado AG The Journal of Neuroscience, 2024 Jul 3; 44(27):e2149232024.

Motion-BIDS: an extension to the brain imaging data structure to organize motion data for reproducible research

Jeung S, Cockx H, Appelhoff S, Berg T, Gramann K, Grothkopp S, Warmerdam E, Hansen C, Oostenveld R, BIDS MaintainersAppelhoffStefanS6MarkiewiczChristopher J.CJ9SaloTaylorT10GauRémiR11BlairRossR9GalassiAnthonyA12EarlEricE12RogersChristineC13HardcastleNellN9RayKimberlyK14, Welzel J Scientific Data, 2024 Jul 2; 11:716.

Ventrointermediate thalamic stimulation improves motor learning in humans

Voegtle A, Terzic L, Farahat A, Hartong N, Galazky I, Hinrichs H, Nasuto SJ, de Oliveira Andrade A, Knight RT, Ivry RB, Voges J, Deliano M, Buentjen L, Sweeney-Reed CM Communications Biology, 2024 Jul 2; 7:798.

Measures of the coupling between fluctuating brain network organization and heartbeat dynamics

Candia-Rivera D, Chavez M, De Vico Fallani F Network Neuroscience, 2024 Jul 1; 8(2):557-575.

News and announcements

You can also follow us on Mastodon.

5 June 2024

FieldTrip Cheatsheet

Jim McKay has created a Cheatsheet for FieldTrip that summarizes all the data formats, routines, and configuration options in a PDF file. You can see an example page here.

This FieldTrip Cheatsheet is FREE to all subscribers of The FUNNI Pages newsletter. Click this link to join this community for functional neuroimaging and then you can request the cheatsheet be sent to your email by clicking this link.

3 May 2024

Mats presents “reproducescript” in JOSS podcast

Mats van Es was interviewed by Arfon Smith and Abby Cabunoc Mayes for the JOSSCast, a podcast about using open source to accelerate research. Mats explains how the reproducescript option can be used with all FieldTrip functions to generate a standardized and linear analysis script that is easy to share, as explained in our recent paper Reducing the efforts to create reproducible analysis code with FieldTrip. Furthermore, they discuss MATLAB and Python, and how to reduce barriers for sharing analysis code.

You can listen to the podcast here on Spotify.

6 March 2024

The Neuro – Irv and Helga Cooper Foundation Open Science Prizes 2024

The Montreal Neurological Institute-Hospital has launched the 2024 edition for the Open Science Prizes! These prestigious awards celebrate groundbreaking projects that promote Open Science in the field of neuroscience. Check out the details on how you can apply.

Last year the Brain Imaging Data Structure (BIDS) steering group was awarded the International Prize, perhaps this year your Open Science project gets selected!

26 February 2024

We will present a tutorial at the Workshop on Intracranial Recordings in humans, Epilepsy, DBS (WIRED) at ICM in Paris from 13th to the 15th of March 2024. The FieldTrip tutorial will happen in the afternoon of the 13th.

To attend the hands-on tutorials, participants will have to register here and bring their own laptops.

15 February 2024

From about 2009 we used a locally hosted Bugzilla server as “issue tracker” to maintain and distribute to-do lists and supports the follow-up communication between developers and users. Since about 2016 we moved on to GitHub for project management and issue tracking. We would occasionally still look up some old Bugzilla discussion regarding features, code design choices and bugs.

However, due to resource limitations and security concerns we decided to discontinue the Bugzilla server. As of now, https://bugzilla.fieldtriptoolbox.org contains a read-only archived copy of the bug reports and discussions. All links from the website and from the email archive to bugs on Bugzilla should still work, so the details of past work are not lost.

1 February 2024

EEG100 Image Competition - $500 USD Prize - Closing 29th February 2024

One hundred years ago Hans Berger undertook the first ever recording of electrical activity from a human brain. The discovery of a “brain script”, offered to revolutionise our understanding of mind and brain…

As we celebrate a century of this ground-breaking moment for the neurosciences, the EEG100 consortium invites you to submit creative visual images that provide a homage to the legacy of Berger’s discovery and/or present a glimpse into the future possibilities EEG holds. The winning visual will be used by the EEG100 consortium throughout 2024 as part of the centenary year celebrations. The work will for example be included in a scientific commentary article and presented at various conferences (with full acknowledgment).

This competition is open to everyone – whether you’re a hobbyist, a professional artist/designer, or simply a neuroscientist with a creative side. We have no specific demands on visual style or content; we’re looking for originality and creativity – surprise us! We do however ask that you avoid designs like a brain with ‘100’ superimposed on it. Ideally the work would adapt well to various formats, from print to digital display, but we welcome all forms of submissions (image, film, animation etc)! Please be aware that by submitting your design, you agree to release the image to the public domain under a CC license of your choice.

The winner will be determined by vote within the EEG100 consortium based on originality, relevance, and overall visual impact of the submissions. The winning creator will be awarded a $500 USD gift voucher.

You may submit any common file format (like .jpg, .png, .pdf for images or .mp4 for video) but if your design is chosen, we will ask you to supply your artwork in a production ready format. Please email your submission to century.of.eeg@gmail.com with the subject title “#EEG100 Image Competition” by the end of 29th February 2024 (on the last time zone on earth!).

You will receive a confirmation email upon successful submission.

Decisions will be announced by the end of March 2024.

25 October 2023

We are coming up to the 100-year anniversary of the discovery of human EEG.

In celebration of this seminal moment for human neuroscience, we are asking the FieldTrip, the EEG, and the neuroscience community at large, to document the impact this discovery has had on our understanding of the brain and to share thoughts on the short, medium, and long-term future of human non-invasive scalp EEG through this online survey. Importantly, this survey will also help in defining our collective perspectives on future research priorities.

I hope you will be able to spare the 10-15 minutes it will take to complete the survey and make your views heard about the past and future of EEG.


Thank you for your time.