Backfit Microstate Template Maps to EEG Data

Assigns each time point to the microstate template map with the highest absolute spatial correlation. This allows applying microstate maps derived from one dataset to another dataset.

Usage

eegMicrostateBackfit(x, maps, assay_name = NULL)

Arguments

x

A PhysioExperiment object with EEG data.

maps

Numeric matrix of microstate template maps (n_channels x n_states), as returned in metadata(x)$microstates$maps.

assay_name

Name of the input assay. If NULL, the default assay is used.

Value

Modified PhysioExperiment with updated microstate labels in metadata(x)$microstates$labels. Also stores the template maps in metadata(x)$microstates$maps and the number of states in metadata(x)$microstates$n_states.

References

Michel, C. M., & Koenig, T. (2018). EEG microstates as a tool for studying the temporal dynamics of whole-brain neuronal networks. NeuroImage, 180, 577-593.

See also

eegMicrostates(), eegMicrostateStats(), eegMicrostateSequence()

Examples

if (FALSE) { # \dontrun{
pe1 <- make_eeg(n_time = 5000, n_channels = 19, sr = 500)
pe1 <- eegMicrostates(pe1, n_states = 4)
maps <- metadata(pe1)$microstates$maps

pe2 <- make_eeg(n_time = 3000, n_channels = 19, sr = 500)
pe2 <- eegMicrostateBackfit(pe2, maps)
} # }