title: Assessment of emotional reaction induced by visual stimulation based on cross-correlation between pulse wave transmission time and heart rate in the Mayer wave-band.
abstract: Mayer wave (0.1Hz fluctuation) included in heart rate variability and blood pressure variability appears apparently in the resting state. On the other hand, it can be predicted that a strong emotional reaction may affect the relationship between these variabilities. This prediction suggests that the human emotional reaction can be quantified by the maximum correlation coefficient rho/sub max/ between heart rate and blood pressure whose frequency components are limited to the Mayer wave-band. However, the conventional method of obtaining rho/sub max/ needs a bulky and expensive device for measuring continuous blood pressure. In this study, a smaller and cheaper device for measuring pulse wave transmission time (PTT) has been developed. This work has shown that the PTT can give rho/sub max/ instead of blood pressure and that rho/sub max/ obtained by the PTT may significantly reflect the emotional reaction on the basis of an experiment using nine healthy subjects with nine self-produced devices in which pictures were presented to the subjects to induce their emotional reactions.
authors.affiliation: Res. Div. on Adv. Inf. Technol., Tohoku Univ., Sendai, Japan.
authors.forename: Makoto
authors.initials: M
authors.lastname: Yoshizawa
authors.forename: Norihiro
authors.initials: N
authors.lastname: Sugita
authors.forename: Akira
authors.initials: A
authors.lastname: Tanaka
authors.forename: Tatsuya
authors.initials: T
authors.lastname: Masuda
authors.forename: Ken-ichi
authors.initials: K
authors.lastname: Abe
authors.forename: Shigeru
authors.initials: S
authors.lastname: Chiba
authors.forename: Tomoyuki
authors.initials: T
authors.lastname: Yambe
authors.forename: Shin-ichi
authors.initials: S
authors.lastname: Nitta