Pycrostates: a Python library to study EEG microstates

Microstate analysis of the electroencephalogram (EEG), introduced in 1972 by Lehman (Lehmann, 1971), is a spatiotemporal analysis technique that takes advantage of the full spatial resolution of EEG recordings.Formalized further by Pascual Marqui and colleagues (Pascual-Marqui et al., 1995), microstate analysis studies the distribution of the surface EEG potential maps over time.It transforms the EEG recordings into sequences of successive states of variable duration, called EEG microstates.