In recent years, affective state measurement based on physiological indices has been widely studied. Among these approaches, methods that combine physiological indices with psychological models of emotion have gained attention due to their simplicity of sensor-based measurement and interpretability of results. However, most existing studies focus on distinguishing individual emotions, while few have examined the coexistence of multiple emotions evoked during a single stimulus. This study aims to clarify the proportion of dominant emotions that emerge during a stimulus. To this end, this study proposes a new metric, the Emotion Appearance Rate (EAR), which quantifies the frequency of occurrence of each emotion measured through physiological indices. Using this metric, this study quantified the relative quantities of multiple emotions that appeared during stimulation and discussed the validity of the obtained results.
FURUGUCHI et al. (Thu,) studied this question.