[1] UCLouvain, Dept Anesthesiol, Clin Univ St Luc, Brussels, Belgium
[2] Univ Liege, Liege Univ Hosp, Dept Anesthesia & Intens Care Med, Consciousness Themat Unit, Liege, Belgium
[3] Univ Liege, GIGA Consciousness Themat Unit, Anesthesia & Perioperat Neurosci Lab, GIGA Res, Liege, Belgium
[4] Univ Ghent, Dept Basic & Appl Med Sci, Ghent, Belgium