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J Appl Physiol 19: 233-235, 1964;
8750-7587/64 $5.00
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Effect of simulated breath sounds on ventilation

M. Henry Williams JR. 1 and Cecile Kane 1

1 Department of Medicine, and Unit for Research in Aging, Albert Einstein College of Medicine, New York City, and Chest Service, Department of Medicine, Bronx Municipal Hospital Center, Bronx, New York

When normal subjects listened to simulated breath sounds while breathing at their natural respiratory frequency there was a significant decrease of alveolar Pco2. The alveolar Pco2 did not fall further when these subjects listened to the simulator and breathed slowly, but when they breathed with the simulator at a very rapid frequency there was further fall of the PaCOCO2. When patients with chronic obstructive pulmonary disease listened to simulated breath sounds while breathing at their natural respiratory frequency there was a decrease of arterial Pco2 which fell further when the subjects breathed with the simulator at a slow respiratory rate.

breathing, effect of auditory stimuli on; breathing rate and pulmonary function on chronic obstructive pulmonary disease; alveolar ventilation and auditory respiratory stimuli; respiratory frequency and ventilation

Submitted on July 12, 1963






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