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EEGLAB is a widely used open-source MAT-LAB toolbox for analysis of electrophysiological data. Using EEGLAB, users can import various data formats, preprocess data (filter, resample, average, epoch), visualize data (signal browser, event-related potentials, power spectra), perform independent component analysis (ICA), use various time/frequency analysis methods such as eventrelated spectral perturbation (ERSP) and inter-trial coherence (ITC). The extensible plug-in architecture enables third parties to contribute additional functionality such as source localization, connectivity estimation or the design of online brain-computer interfaces.
Brunner et al. (Mon,) studied this question.