FieldTrip is a Matlab software toolbox for MEG and EEG analysis that is being developed at the Centre for Cognitive Neuroimaging of the Donders Institute for Brain, Cognition and Behaviour together with collaborating institutes. The development of FieldTrip is currently supported by funding from the BrainGain project. The FieldTrip software is released as open source under the GNU general public license.
The software includes algorithms for simple and advanced analysis of MEG and EEG data, such as time-frequency analysis, source reconstruction using dipoles, distributed sources and beamformers and non-parametric statistical testing. It supports the data formats of all major MEG systems (CTF, Neuromag, BTi) and of the most popular EEG systems, and new formats can be added easily. FieldTrip contains high-level functions that you can use to construct your own analysis protocols in Matlab. Furthermore, it easily allows developers to incorporate low-level algorithms for new EEG/MEG analysis methods.
This FieldTrip website is a Wiki (just like Wikipedia), which allows anyone visiting the site to add, remove, or otherwise edit all content, very quickly and easily, without the need for registration. The IP addresses of people that make changes are logged, and they can be blocked if needed. Please act responsibly and only make changes that improve this site.
29 Januari 2010
The wiki system has just been upgraded to the latest version (dokuwiki-2009-12-25c).
16 December 2009
As some of you may know, Matlab (and specifically the older versions
that we still support) does not have a good way of separating
functions in different toolboxes from each other. The fieldtrip
version of preprocessing (or read_data) might be completely different
from a function with the same name in another toolbox. That is not a
problem for some of the unusual function names, but some function
names like “preprocessing” are very generic and therefore likely to be
used in completely different contexts.
After repeated discussion with the developers of the SPM Matlab
toolbox, we have decided to start adopting the same naming scheme that
SPM is using. That naming scheme consists of prefixing the function
name with the name of the toolbox, e.g. spm_contrasts. The prefix that
FieldTrip will use is “ft_”. So that means that the FieldTrip
preprocessing function will be renamed into ft_preprocessing,
sourceanalysis will become ft_sourceanalysis, freqanalysis will become
ft_freqanalysis, etc. This will affect all publicly available
FieldTrip functions, i.e. the main functions that you are using. The
advantage of this change in function names is that it further
facilitates the already very good collaboration of the FieldTrip
project with other EEG/MEG method development groups, such as SPM,
EEGLAB, BrainStorm and others.
Note that this is not an easy choice to make and we have carefully
considered the consequences. Of course all users have existing scripts
that use the old function names. We will do our utmost best to ensure
that your old scripts will remain functional, also with new versions
of the fieldtrip toolbox. To make this possible, we will provide
backward compatibility wrappers, e.g. there will be a preprocessing.m
function that calls ft_preprocessing.m and the likes. Not only the
existing analysis scripts are affected, but also the documentation on
the fieldtrip wiki will have to be updated. Furthermore, fieldtrip
functions often call each other, which means that inside the fieldtrip
functions the function names also have to be changed.
On the short time scale, we will provide backward compatibility
wrapper functions. On the medium time scale, we will ensure that the
fieldtrip code and documentation is internally consistent. On the long
run everyone (which includes you!) should adopt the new function
names. Please start using these new function names in your scripts and
in your derived functions as soon as possible. At a certain point in
the future, the backward compatibility to the old/current function
names will be removed from the fieldtrip release, so by that time all
of your scripts should only be using the new function names, otherwise
they won't work any more. The backward compatibility will be ensured
throughout 2010, i.e. for a full year. Usually we are able to maintain
backward compatibility for a much longer time, so probably you should
not have to worry about this too much.
18 November 2009
We have migrated most of the source code from a CVS repository to a new SVN repository, which facilitates the development and the release management. See the documentation about the SVN source code management for more details.
8 September 2009
I have released the external/biosig directory from the FieldTrip release version, because it is causing problems with some of the functions having the same name as a Matlab builtin. If needed, you can get a condensed version of the biosig code from ftp://ftp.fcdonders.nl/pub/fieldtrip/external or the full code from the BIOSIG website.
2010-02-08 22:34 roboos
peer/src/Makefile, peer/src/compiler.h, peer/src/fairshare.c, peer/src/peerinit.c, peer/src/platform_includes.h: some small changes to the source code to smooth compilation on osx, no functional changes
2010-02-08 17:14 roboos
2010-02-08 17:11 roboos
2010-02-08 16:45 roboos
peer/peercompile.m, peer/src/announce.c, peer/src/compiler.h, peer/src/discover.c, peer/src/expire.c, peer/src/fairshare.c, peer/src/peer.c, peer/src/peer.h, peer/src/peerinit.c, peer/src/platform_includes.h, peer/src/socket_includes.h, peer/src/tcpserver.c, peer/src/tcpsocket.c, peer/src/unix_includes.h, peer/src/util.c, peer/src/win32, peer/src/win32/gettimeofday.c, peer/src/win32/gettimeofday.h, peer/src/win32/poll.c, peer/src/win32/stdint.h: first attempt to clean up the code so that it can compile on windows
changed header files, added compiler specific ifdefs in compiler.h
changed unix_includes annd socket_includes into platform_includes
moved many variable declarations to the top of the function
don't assign value 0 to pthread_t variable (in peer.c)
all the code compiles currently, but it does not link yet into a mex file
determining the host IP address is disabled
2010-02-08 15:46 jansch
a longer history of changes to the fieldtrip main functions is available
here-
forward and inverse source modeling is done using the
forwinv module, see
changelog preprocessing (e.g. filtering and detrending) is done using the
preproc module, see
changelog support for realtime analysis is implemented using the
realtime module, see
changelog
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