Cortical evoked responses and attentiveness in man: differential effects of selective attentiveness and general alertness level.
D001288:Attention; D002540:Cerebral Cortex / Q000502:physiology*; D004192:Discrimination, Psychological; D004558:Electric Stimulation; D004569:Electroencephalography; D005071:Evoked Potentials; D006801:Humans; D008027:Light