Analysis on Human Heart Signal during Sad Video Stimuli using Heart Rate Variability Triangular Index (HRVi)

Researchers have discovered so far, that there is
a closed relationship between psychological conditions and the
physiological condition. Many researchers found that emotions
affect a person's health, especially negative emotions. In this
paper, we evaluated the correlation between the human’s
emotions and the heart signals. Heart signals were recorded
using ECG sensors. Then, by using Kubios HRV we collected
the HRV value both in time and frequency domain. This paper
focused on data which was extracted using the RR Interval
feature. The 29 healthy subjects were induced using video
stimuli after they agreed through the consent form. The RR
Interval feature that has been extracted was then analyzed using
KUBIOS to obtain the value of HRVi (Heart Rate Variability
Triangular Index) in time domains. The results show that the
average HRVi value after being induced by video stimuli is
14.87. There is a significant difference between HRVi value
before and after the stimulation process. Immediate increase of
HRVi can lead to a fatal heart attack. The result showed us that
in seven minute, HRVi value can immediately increase after
experiencing Sad Emotion induced by Sad Video Stimuli.
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