Create a Simulated EDA PhysioExperiment with SCR Events

Generates a synthetic electrodermal activity (EDA) PhysioExperiment object with known SCR events time-locked to stimulus markers. The object includes regularly spaced stimulus events stored via PhysioEvents, making it suitable for testing event-related SCR analysis workflows.

Usage

make_eda_with_scr(
  n_time = 6000,
  n_channels = 1,
  sr = 10,
  n_events = 4,
  event_interval = 10
)

Arguments

n_time: Number of time points (default: 6000).
n_channels: Number of EDA channels (default: 1).
sr: Sampling rate in Hz (default: 10).
n_events: Number of stimulus events to embed (default: 4).
event_interval: Interval between events in seconds (default: 10). Note: events are spaced evenly within the usable signal duration rather than at exact fixed intervals.

Value

A PhysioExperiment object with a single "raw" assay containing simulated EDA data and stimulus events accessible via getEvents. Each event has type = "stimulus" and duration = 0.5 seconds.

References

Bach, D.R., et al. (2010). "Modelling event-related skin conductance responses." International Journal of Psychophysiology, 75(3), 349-356. doi:10.1016/j.ijpsycho.2010.01.005

Examples

x <- make_eda_with_scr()
x
#> class: PhysioExperiment
#> dim: 6000 x 1 
#> assays(1): raw
#> samplingRate: 10 Hz
#> channels(1): EDA1
#> colData names(3): label, type, unit
#> events: 4