Multimodality Exploration of Event‐Related Potentials in Chronic Alcoholics

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Abstract
Short- and long-latency auditory evoked potentials (SAEPs and LAEPs), visual-evoked potentials (VEPs), and contingent negative variation (CNV) were studied in 32 chronic alcoholics and their age-, sex-, and education-matched control subjects. The alcoholics exhibited a delayed SAEP peak V and an increase in the III-V and I-V intervals, increased VEP P100 latency, increased LAEP N2 and P3 latencies and increased LAEP N1-P2 amplitude. The analysis of the anomalies at a clinical level indicates a differential sensitivity of the event-related potentials. The parameters most sensitive to chronic alcohol consumption were (in descending order) P3 latency, peak V latency, the I-V and III-V intervals, and P100 latency.

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