Investigation of Effective Heart Rate Variability Indices for Emotion Estimation During Long-term Images Gazing
DOI:
https://doi.org/10.52731/liir.v006.330Keywords:
emotion estimation, heart rate, long-term images gazing, visual stimuliAbstract
In recent years, demand for emotion estimation using heart rate has increased in fields such as life-log and healthcare. HRV indices can estimate the activity level of the autonomic nervous system, but their sensitivity varies depending on the task and stimuli, sometimes leading to inconsistent results. Therefore, selecting the optimal HRV indices for each task and stimuli is important, and this study focused on emotional induction during long-term visual stimuli. We constructed the experiment in which subjects gazed at images of consistent emotional evaluation values, and identified the effective HRV indices for emotion estimation. The results showed that SDRR and L were effective for estimating excitement, Mean and rMSSD for estimating disgust, and LF/HF for classifying boredom and relaxation. These results are expected to serve as a basis for emotion estimation in situations where people are exposed to visual stimuli for long periods, such as when viewing videos or scenery.
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