At depths below 150 m divers breathing heliumoxygen mixtures begin to experience tremors and a decrease in psychomotor function, symptoms of high-pressure nervous syndrome.
In young volunteers, the pharmacological properties of nitrazepam were found to produce sedation and impaired psychomotor performance and standing steadiness.
During childbirth, administration of methoxyflurane produces significantly better analgesia, less psychomotor agitation, and only slightly more somnolence than trichloroethylene.
