[Eeglablist] ERP PCA Toolkit 2.0 release

Joseph Dien jdien07 at mac.com
Sun Nov 1 09:05:27 PST 2009


After some extended testing and bug fixing, I think the ERP PCA  
Toolkit 2 is ready to move out of beta (thanks to Tim Curran, Grega  
Repovs, Sebastian Korb, Andrew Hill, Aminda O'Hare, Eric Brian, and  
others).  I can't claim it won't have any more bugs but it should be  
good enough at this point.  The EP Toolkit is intended for ERP  
researchers as an adjunct to EEGlab.  The main development is that  
I've added a graphical user interface to make it easier to use.  I've  
also added features to further three goals:

1) Facilitating analysis of noisy ERP data, such as developmental or  
clinical, by the application of automated artifact correction and  
robust statistics at both the averaging stage and the inferential  
statistics stage.

2) Facilitating multivariate decomposition of ERP data, preferably  
using a combination of EEGlab's ICA rotation for the spatial mode and  
the Promax PCA rotation for the temporal mode.

3) Facilitating inferential data analysis of ERP data using robust  
statistics not previously available with a user interface.

The tutorial provides in-depth guidance on how to use the Toolkit and  
has been extensively revised.

You can download it from:

https://sourceforge.net/projects/erppcatoolkit/

To get notices of future releases, join the mailing list:

https://lists.sourceforge.net/lists/listinfo/erppcatoolkit-support

This version of the EP Toolkit is more computationally demanding so it  
requires Matlab 2006 or more recent. It also needs at least 2GB of RAM  
and preferably 4GB or more.  In general, the faster the computer, the  
better.  It has been extensively tested on OS X and is currently  
undergoing testing on Windows XP.  It can read text, EEGlab .set, EGI  
simple binary and EGIS, Biosig EDF, and Neuroscan AVG files.  I'd be  
happy to implement support for other file formats if a user is willing  
to help test them.  The EGI format files it saves can in turn be read  
by programs like EEGLab and BESA.

Make sure to download the very latest version of EEGlab and Fieldtrip  
to use this (as described in the tutorial file).  For example, I just  
today committed a fix to FieldTrip for a bug (reported by Grega  
Repovs) that causes EEGlab .set files to be scrambled when using the  
dual file .set/.fdt format (like EEGlab, the EP Toolkit uses  
FieldTrip's I/O functions to read in other file formats, although this  
bug didn't affect EEGlab since it doesn't use FieldTrip for its own  
files).

If you find any bugs, please let me know ASAP so I can fix them.  If  
making a bug report, make sure to provide full information, including  
the error message (if any), the version of the operating system and of  
Matlab, and a copy of the data file you were trying to analyze.   
Suggestions and general feedback are also welcome.  Note, though, that  
I don't have grant support for this work so I'm not as free to respond  
as folks who have full-time funding to support software development.

Cheers!

Joe

--------------------------------------------------------------------------------

Joseph Dien,
Senior Research Scientist
Center for Advanced Study of Language
University of Maryland , Box 25
College Park , MD 20742-0025

E-mail: jdien07 at mac.com
Phone: 301-226-8848
Fax: 301-226-8811
http://homepage.mac.com/jdien07/









More information about the eeglablist mailing list