Plethysmography as an objective method of audiometry.
In 37 subjects with normal hearing acuity and normal cardiovascular system, vasomotor reactions to sounds of 1024, 2048, and 4096 Hz frequency and 0, 10, 20, 60 and 80 dB intensity above the hearing threshold determined were studied subjectively. Pure sounds evoked in all persons plethysmographic reactions not subject to extinction under the conditions of audiometric investigation.
D000161:Acoustic Stimulation; D000293:Adolescent; D000328:Adult; D001299:Audiometry / Q000379:methods*; D001309:Auditory Threshold; D006801:Humans; D010991:Plethysmography; D013997:Time Factors