signals {gsignal}

signals

Description

Sample EEG and ECG data.

Usage

signals

Format

A data.frame containing 10 seconds of data electrophysiological data, sampled at 256 Hz with a 24 bit A/D converter, measured in microVolts. The data frame consists of 2 columns (channels):

eeg

electroencephalogram (EEG) data measured from electrode Pz according to the 10-20 system, referred to algebraically linked mastoids (the brain's alpha rhythm is clearly visible).

ecg

electrocardiogram (ECG) data, recorded bipolarly with a V6 versus V1 chest lead (this lead maximizes the R wave of the ECG with respect to the P, Q, S, T and U waves of the cardiac cycle).

Author(s)

Geert van Boxtel, [e-mail]

Examples

data(signals)
time <- seq(0, 10, length.out = nrow(signals))
op <- par(mfcol = c(2, 1))
plot(time, signals[, 1], type = "l", xlab = "Time", ylab = "EEG (uV)")
plot(time, signals[, 2], type = "l", xlab = "Time", ylab = "ECG (uV)")
par(op)