Image Generation that Reflects Physiological and Psychological State in Real Time

Abstract

As a basic approach to realization of the real-time image generation that reflectsects physiological and psychological state, in this study, an auditory biofeedback system mediated by the cross-correlation coefficient ρ_max from blood pressure to heart rate has been developed. First, a personal computer system that can calculate ρ_max in real time has been developed. Next, a feedback loop has been added to the system so that the magnitude of a noisy sound presented to the subject can be changed according to ρ_max. The results obtained from the experiments using this system indicated that the auditory biofeedback loop mediated by ρ_max can be realized. However, the fine tuning of the controller in consideration of individual difference is required for establishing a sufficiently stable feedback.