title: The effect of nitrous oxide on the relation between the evoked potential and contrast threshold.
mesh_terms: D000065:Accommodation, Ocular / Q000187:drug effects; D005071:Evoked Potentials / Q000187:drug effects*; D005133:Eye Movements / Q000187:drug effects; D005556:Form Perception / Q000187:drug effects*; D006801:Humans; D008012:Lidocaine; D008297:Male; D009609:Nitrous Oxide / Q000494:pharmacology*; D011601:Psychophysics; D012535:Scalp; D014793:Visual Cortex / Q000502:physiology
chemical_list: D008012:Lidocaine; D009609:Nitrous Oxide