D.-J. Kim, H.-M. Lee, K.-S. Kim, and J.-W.Lee (Korea)
pulse wave, Heart Rate Variability, human sensibility evaluation, biofeedback
This study describes a novel method for estimating Heart Rate Variability (HRV) and its relevant human sensibility by analyzing the information in terms of a pulse wave rather than raw data of electrocardiograms or electroencephalograms. For this objective, pulse wave signals of a subject’s two distinct emotional states (positive and negative moods) are first acquired. To evoke the emotions in test mode, the movie files in namely happy or sad mode are collected and played in subjects' monitor. From the acquired pulse signal, the features of HRV are calculated and consequently HRV and its FFT spectra are estimated to evaluate the human sensibility. Since a heart is an organ that is controlled by Autonomic Nervous System (ANS), ANS can reflect the variations of heart activity according to a person’s various emotions. Additionally a biofeedback technique to respond the bad (negative) mood is designed and a biofeedback software is developed by playing image motions with interacting with the results of the sensibility evaluation. It turned out that HRV was changed according to the subject's emotions. Accordingly, the sensibility evaluation test validated the feasibility of our method.
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