Abstract
Perception of comfort and discomfort is different from person to person, even in response to the same stimulus. Further, effects of load by the type of stimulation are different even in the same person. In this study, we made a comparison to the resting state (sitting with eyes closed) using fingertip pulse waves and or ECGs, when subjects were given 13 types of stimulus (eye mask, light pulse, white paper, red paper, English-language newspaper, cartoon, hard rock, classic, lavender, decimal subtraction, and one leg up, walk, running machine). Specifically, we used LF/HF and Wavelet analysis of time series data of the R-R interval; we attempted to extract the features of the stimulus and the personal characteristics.
