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- W2079044357 abstract "Individuals with an at-risk mental state (or prodromal symptoms) have a 20-40% chance of developing psychosis; however it is difficult to predict which of them will become ill on the basis of their clinical symptoms alone. We examined whether neurophysiological markers could help to identify those who are particularly vulnerable.35 cases meeting PACE criteria for the at-risk mental state (ARMS) and 57 controls performed an auditory oddball task whilst their electroencephalogram was recorded. The latency and amplitude of the P300 and N100 waves were compared between groups using linear regression.The P300 amplitude was significantly reduced in the ARMS group [8.6+/-6.4 microvolt] compared to controls [12.7+/-5.8 microvolt] (p<0.01). There were no group differences in P300 latency or in the amplitude and latency of the N100. Of the at-risk subjects that were followed up, seven (21%) developed psychosis.Reduction in the amplitude of the P300 is associated with an increased vulnerability to psychosis. Neurophysiological and other biological markers may be of use to predict clinical outcomes in populations at high risk." @default.
- W2079044357 created "2016-06-24" @default.
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- W2079044357 date "2008-06-01" @default.
- W2079044357 modified "2023-10-17" @default.
- W2079044357 title "Abnormal P300 in people with high risk of developing psychosis" @default.
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