Predicting prognosis in patients with first-episode psychosis using auditory P300: A 1-year follow-up study

Early intervention from the first episode is well known to be essential for favorable outcomes in patients with schizophrenia. Previous studies have shown that a shorter duration of untreated psychosis (DUP) is associated with better symptomatic and functional outcomes (Perkins et al., 2005). The DUP seems to affect quality of life, social functioning and cognitive function throughout the course of the illness and often throughout the patient's life (Ito et al., 2015). In this respect, appropriate management of patients during their first episode of psychosis for the purpose of preventing illness progression and recurrent episodes has been a great interest (McGorry et al., 2008, Sommer et al., 2016).

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