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Create EEG with Embedded Epileptic Spikes

Source: R/eeg-data.R
make_eeg_spikes.Rd

Generates multi-channel EEG with sharp transient spikes at known locations. Spikes are ~50-100ms duration with high amplitude and sharp morphology, inserted at random time points across a subset of channels.

Usage

make_eeg_spikes(n_time = 30000, n_channels = 19, sr = 500, n_spikes = 15)

Arguments

n_time

Number of time points (default: 30000 = 60s at 500Hz).

n_channels

Number of channels (default: 19).

sr

Sampling rate in Hz (default: 500).

n_spikes

Number of epileptic spikes to insert (default: 15).

Value

A PhysioExperiment with simulated clinical EEG in the "raw" assay. Sets metadata(x)$spike_locations with a data.frame containing columns: spike_id, sample (sample index), time_sec (time in seconds), and channels (list column of affected channel indices).

See also

make_eeg(), eegSpikeDetect(), eegQEEG(), eegSlowing()

Examples

pe <- make_eeg_spikes(n_time = 5000, n_channels = 4, sr = 250, n_spikes = 3)
dim(SummarizedExperiment::assay(pe, "raw"))  # 5000 x 4
#> [1] 5000    4