Abstract
Previous studies have demonstrated that ethyl alcohol ingestion affects the clinically recorded visually evoked cortical potential (VECP). However these studies have not related the possible relevance of such alcohol-induced VECP changes to visual performance. We studied the flash and pattern-reversal monopolar VECP recorded at the occiput before and after alcohol ingestion and compared the recordings with psychophysical parameters (e.g. contrast sensitivity) also measured before and after alcohol intake. Results are presented, and the potential usefulness of VECP alterations in predicting alcohol-induced effects on visual performance is evaluated. We found no clear, consistent effect of blood alcohol levels ranging from 0.05% to 0.15% on the parameters tested.
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