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Aim
We previously reported abnormal P300 and N200 in a visual oddball task, and progressive P300 amplitude reduction at 1‐year follow‐up in patients with first‐episode schizophrenia. P300 reduction as well as intact P1/N1 were also observed in clinical high‐risk subjects (CHR), but whether or not these components change over time is unknown. This study evaluates, longitudinally, the visual P300,...
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