text: , 2005) to name only a few, their application to anesthetic-induced EEG changes is relatively recent (Bojak and Liley, 2005; Foster et al., 2008; Hutt and Longtin, 2010; Liley and Bojak, 2005; Liley et al., 2003; Molaee-Ardekani et al., 2007; SteynRoss et al., 1999).