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Long-Term Variability in Physiological-Arousal Relationships for Robust Emotion Estimation
Hiroto Sakimura, Takayuki Nagaya, Tomoki Nishi, Tetsuo Kurahashi, Katsunori Kohda, Nobuhiko Muramoto
https://arxiv.org/abs/2508.18782

Long-Term Variability in Physiological-Arousal Relationships for Robust Emotion Estimation
Estimating emotional states from physiological signals is a central topic in affective computing and psychophysiology. While many emotion estimation systems implicitly assume a stable relationship between physiological features and subjective affect, this assumption has rarely been tested over long timeframes. This study investigates whether such relationships remain consistent across several months within individuals. We developed a custom measurement system and constructed a longitudinal data…