“…Alternatively, earlier EEG studies in schizophrenia focused primarily on lower frequencies and found substantial evidence of abnormalities. Increased pre-stimulus theta-and delta-band activity have consistently been observed in schizophrenia, occurring; 1) both locally and among distant electrodes; 2) regardless of medication history, and 3) in both first-episode and chronic patients (Morihisa et al, 1983, Morstyn et al, 1983, Sponheim et al, 1994. Converging evidence from magnetic resonance imaging studies supports that the default network in schizophrenia tends to be overactive (Fehr et al, 2003, Harrison et al, 2007.…”