The auditory P300 event—related potential: An objective marker of the encephalopathy of chronic liver disease
Mark G. Davies, Michael J. Rowan, Padraig Macmathuna, P. W. Napoleon Keeling, Donald G. Weir, John Feely – 1 October 1990 – Recently many variants of electroencephalogramevoked responses have been studied as potential diagnostic aids in the detection and evaluation of hepatic encephalopathy. This study assesses the value of the auditory P300 event—related potential — a slow component of the auditory evoked response — as a tool in this field. Twenty‐one nonencephalopathic and 12 encephalopathic (grade 1/2) cirrhotic patients and 26 controls were assessed clinically and psychometrically.