“…Visual resting state EEG analyses in AD patients have revealed a slow dominant posterior rhythm and an increase in widespread delta and theta activity combined with a reduction in alpha and beta (Berger, 1937;Brenner, Reynolds, & Ulrich, 1988;Gordon & Sim, 1967;Letemendia & Pampiglione, 1958;Liddell, 1958;Rae-Grant et al, 1987;Soininen, Partanen, Helkala, & Riekkinen, 1982;Weiner & Schuster, 1956). These abnormal EEG patterns have shown correlations with the cognitive status as well (Brenner et al, 1988;Gordon & Sim, 1967;Johannsen, Jakobsen, Bruhn, & Gjedde, 1999;Kaszniak, Garron, Fox, Bergen, & Huckman, 1979;Liddell, 1958;Merskey et al, 1980;Mundy-Castle, Hurst, Beerstecher, & Prinsloo, 1954;Obrist, Busse, Eisdorfer, & Kleemeier, 1962;Rae-Grant et al, 1987;Roberts, McGeorge, & Caird, 1978;Weiner & Schuster, 1956). Computerized resting state EEG studies have confirmed these early studies; they used the spectral power in predefined frequency bands to quantify EEG rhythmicity, synchrony-measures such as coherence to quantify EEG connectivity, and measures from information theory to quantify EEG complexity (see Jeong, 2004 andDauwels, Vialatte, &Cichocki, 2010 for extensive reviews).…”