et al. 1992, 1993; Rougeul-Buser and Buser 1997) as well as for an analogue of the somatosensory μ rhythm (Bouyer, et al. 1982, 1983; Rougeul-Buser and Buser 1997). More recently, an abundance of human imaging data has emerged which also strongly supports a central role for the thalamus in the generation of EEG α activity (summarized in Hughes and Crunelli 2005; see also Feige et al. 2005; Goncalves et al. 2006).