Chunk #2 — 1. Introduction — 1.1. Neurophysiologic abnormalities in the psychosis prodrome

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Auditory event-related potentials and α oscillations in the psychosis prodrome: neuronal generator patterns during a novelty oddball task.

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for example, in alcoholism, depression, bipolar disorder, or Alzheimer’s disease (e.g., Ford, 1999). Still, P3 reductions and other neurophysiologic deficits have also been observed in unaffected relatives and first-episode patients (e.g., Bramon et al., 2005; Ford, 1999; Hirayasu et al., 1998; Michie, 2001; Turetsky et al., 2000; van der Stelt et al., 2005; Winterer et al., 2003), suggesting that certain electrophysiologic measures may be candidate risk biomarkers that may identify individuals at risk for schizophrenia (e.g., Luck et al., 2011).