Why the study?
Does a visual display providing synchronous feedback of heart rate reduce cardiac-rate variability in human subjects?
Does a visual display providing synchronous feedback of heart rate reduce cardiac-rate variability in human subjects?
Synchronous visual feedback enables human subjects to voluntarily reduce cardiac-rate variability.
Answers are grounded in this paper and cite their sources.
May enable voluntary HRV reduction via biofeedback; hypothesis-generating and requires clinical validation before practice change.
Human subjects learned to reduce cardiac‐rate variability when a visual display provided synchronous feedback of their own heart rate. The increased stability was unaccompanied by significant changes in average heart rate, and was relatively unrelated to respiration changes.
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Hnatiow et al. (1965) studied this question.
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