Recovery from nitrous oxide-oxygen psychosedation as determined by the fusion frequency of flicker.
D000328:Adult; D000769:Anesthesia, Inhalation / Q000009:adverse effects; D001921:Brain / Q000187:drug effects*; D006801:Humans; D009609:Nitrous Oxide / Q000494:pharmacology*; D010100:Oxygen / Q000494:pharmacology; D014796:Visual Perception / Q000187:drug effects*
D009609:Nitrous Oxide; D010100:Oxygen