Effects of oxygen inhalation on noise-induced threshold shifts in humans and chinchillas.
Experiments with both humans and chinchillas indicate that the temporary threshold shift after ten-minute stimulation with 100 dB sound pressure level 1 kHz tone diminished more quickly if the subject breathed pure oxygen and it diminished even more quickly when 95% oxygen-5% carbon dioxide was inhaled rather than ambient air. This effect was observed for both poststimulatory and per-stimulatory gas inhalation.
D000161:Acoustic Stimulation; D000328:Adult; D000368:Aged; D000818:Animals; D001309:Auditory Threshold / Q000187:drug effects*; D002245:Carbon Dioxide / Q000494:pharmacology; D002682:Chinchilla; D003051:Cochlea / Q000033:anatomy & histology; D005260:Female; D006801:Humans; D008297:Male; D008875:Middle Aged; D009622:Noise; D010100:Oxygen / Q000494:pharmacology*
D002245:Carbon Dioxide; D010100:Oxygen