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From: Joseph Dien <jdien07@ma...> - 2009-11-01 17:05:50
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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@... Phone: 301-226-8848 Fax: 301-226-8811 http://homepage.mac.com/jdien07/ |