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OBJECTIVE This article reviews research on the main characteristics of mismatch negativity (MMN) and its applications in neuropsychiatry. BACKGROUND Event-related potentials (ERPs) have been used to study many aspects of information processing. Mismatch negativity is an early auditory ERP that has been identified as an index of an automatic (preconscious)(More)
Substance misuse among people with schizophrenia is thought to be common and to adversely affect the outcome of the illness. The shortcomings of studies in this area include patient samples that are not epidemiologically-based, and methods for detecting substance misuse that have serious limitations. We investigated the frequency and severity of substance(More)
Polyglot psychotic patients can present with either different or less psychotic symptoms depending on the language they use. No known study has used a structured interview to assess such differences. A language history was taken on three patients who were then assessed using the Positive and Negative Syndrome Scale structured interview (SCI-PANSS) for(More)
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