A portable biofeedback device for autonomic responses

  • David W. Harrison
  • Maryjo R. Gavin
  • Walter Isaac
Article
  • 29 Downloads

Abstract

The design of a versatile and programmable transducer amplifier device with analogue display for self-monitoring of autonomic responses is described. The design features low cost, portability, and flexibility across direct-current transducer options (e.g., photoplethysmograph or thermistor). The device can be used for the visual or auditory display of continuous blood volume pulse or temperature measures where the relative amplitude or pulse rate is of concern. Auditory or visual biofeedback may be provided via the choice of a stacked bar-graph display or piezoelectric buzzer. A common circuit design to allow programming options for the estimation of heart rate, inter-beat interval, or pulse duration is provided.

Key words

biofeedback self-monitoring blood volume pulse skin temperature electronics instrumentation home health care 

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References

  1. Harrison, D. W., & Isaac, W. (1984). A variable-threshold, variable-gain, infrared photoplethys-mograph.Journal of Behavioral Assessment, 6(2), 155–157.Google Scholar
  2. Lancaster, D. (1983).TTL Cookbook. Indianapolis, Indiana: Howard W. Sams.Google Scholar

Copyright information

© Plenum Publishing Corporation 1988

Authors and Affiliations

  • David W. Harrison
    • 1
  • Maryjo R. Gavin
    • 2
  • Walter Isaac
    • 2
  1. 1.Department of PsychologyVirginia Polytechnic Institute & State UniversityBlacksburg
  2. 2.Department of PsychologyUniversity of GeorgiaAthens

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