The study included 9 pigs receiving increasing dosages of propofol as sole anaesthetic.

The following data were continuosuly collected from the depth of anaesthesia monitor Sedline:

PSI = patient state index (no unit) - processed electroencephalographic (EEG) variable related to the efect of anaesthetic agents;
SR = suppression ratio (SR, in %) - a measure of the EEG activity suppression (isoelectric signal);
SEF 95%_L and _R=  left and right 95% spectral edge frequencies - a measure of the frequency below which 95% of the total EEG power is located;
EMG: electromyographic activity (EMG, in %) - a measure of muscular activity contaminating the EEG signal;
ARTIFACT(ARTF, in %) - a measure of physiological (not brain-related) and environmental noise contaminating the EEG signal.

The manuscript has been published on PlosOne (PLoS ONE 17(9): e0275484. https://doi.org/10.1371/journal.pone.0275484)