[2M4-CC] Late Breaking Research Session - B

[2M4-CC-01] Measurement of Autonomic Nervous System Function during Outdoor Rest: Effect of Membrane Structure Sunshade

Emi Yuda¹, Junichiro Hayano² (1. Tohoku University, 2. Nagoya City University)

In order to prevent spread of COVID-19, government recommends avoiding 3Cs ( Closed spaces with poor ventilation, Crowded places with many people nearby, Close-contact settings) in any place. ​Although outdoor eating, drinking, and resting have the merit of providing a sense of openness in addition to avoiding the 3Cs, the disadvantages are the ultraviolet rays from the strong sunlight and the discomfort from the glare of the sunlight. ​The use of membrane parasols may help to avoid such discomfort. However, the effects of membrane parasols on human emotions are not well-known. There are only a few studies using membrane parasols. So we conducted an experiment with and without a membrane parasol for outdoor table. 2 subjects sat at a round table on　outdoor terrace and engaged in free dialogue for 10 minutes. The order of the subjects with / without the membrane parasol was randomized for each subject. Subjects measured the ECG R-R interval and acceleration during the experiment using a Holter ECG sensor. And then, Psychomotor vigilance test (PVT) was conducted to measure the level of concentration. We report and discuss the results of these experiments.