EMEGS (ElectroMagnetic EncaphaloGraphy Software) for MATLAB was programmed to analyse data collected with high resolution EEG and MEG. The program runs under MAC, PC , Linux and Unix. It provides an elaborate graphical user interface, which allows for easy exploration of various types of visualizations and statistical analyses on ERP, ERF and wavelet data.
EMEGS offers support for a range of permutation based cluster mass tests for coefficients from t-tests, correlations, custom contrasts and also full factorial ANOVA. The later is realized through residualization of the data for lower order effects. A serial rejection algorithm is available to reduce masking effects. All features are configured on a GUI, no coding is necessary.
EMEGS for Matlab is written in the MATLAB programming language and cannot run without the MATLAB environment (7 or higher). Moreover, for full functionality, it requires the ‘Signal Processing Toolbox’, ‘Statistics Toolbox’ and the ‘Image processing toolbox’.
EMEGS for MATLAB was initially programmed in order to analyse data collected with an 128 sensor Electrical Geodesics EEG device, and a Bti 148 MEG system, therefore, these data formats are best supported. Support for the Neuroscan, CTF and BDF data format has recently been added.
This software is not a crash-safe! It was developed to allow for various types of data analysis, rather than to be crash-safe and selfexplicit. The documentation is short and incomplete. So be warned: there will be problems! You should be familiar with Matlab, or at the very least know somebody who is, to make good use of it. Moreover, there is no warranty whatsoever about the correctness of any results you obtain with EMEGS. We have successfully been using it for many years now, but there may be errors.
EMEGS for MATLAB is free software. You can redistribute it and/or modify it under the terms of the GNU General Public License as published by the Free Software Foundation.
The current stable version of EMEGS for MATLAB is 3.3! The current beta version is 3.4!
This program is free software: you can redistribute it and/or modify it under the terms of the GNU General Public License as published by the Free Software Foundation, either version 3 of the License, or (at your option) any later version.
This program is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for more details.