Abstract

ABSTRACTAn automated system for obtaining a direct measurement of total respiratory resistance (RT) is presented. A polygraph and digital computer are used to filter and quantify the pressure and flow outputs of a forced oscillatory device to determine RT. Functional descriptions of the complete hardware system and of the computer software are included. The measurement of RT is viewed as providing a sensitive and relatively unobtrusive means for investigation of psychophysiological precipitants of subclinical variations in bronchial tone in normal Ss and in Ss suffering from obstructive bronchial disorders such as bronchial asthma. In addition, augmented sensory feedback of RT can be utilized in investigations of S's ability to attain voluntary control of RT.

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