Liu Congcong, Zhang Yawen, Karl Herrup E, Shi Bertram E
Annu Int Conf IEEE Eng Med Biol Soc. 2018 Jul;2018:315-318. doi: 10.1109/EMBC.2018.8512227.
Recent research has shown that design principles inherent in a Japanese style garden can reduce measures of stress in both healthy and dementia patients. However, it was not clear how subjects' visual interaction with the scene affected their physiological responses. To address that, we developed a novel non-invasive system to collect synchronized measurements of eye gaze and physiological indicators of sympathetic neural activity: the electrocardiogram, the blood volume pulse and the galvanic skin response, as subjects view a garden environment. We characterized the visual engagement of subjects using the average fixation duration, the saccade amplitude and the gaze transition entropy. We find a statistically significant positive correlation between gaze transition entropy and mean heart rate change. Our results suggest that the visual engagement of subjects with their environment may influence their physiological responses to it: more engagement may lead to more relaxation. Our results also highlight the importance of taking into account the detailed spatio-temporal characteristics of the gaze trajectory.
最近的研究表明，日式庭园所固有的设计原则能够降低健康人和痴呆症患者的压力水平。然而，尚不清楚受试者与场景的视觉交互是如何影响其生理反应的。为了解决这一问题，我们开发了一种新型非侵入性系统，用于在受试者观看园林环境时同步收集眼动注视和交感神经活动生理指标（心电图、血容量脉搏和皮肤电反应）的测量数据。我们使用平均注视持续时间、扫视幅度和注视转移熵来表征受试者的视觉参与度。我们发现注视转移熵与平均心率变化之间存在统计学上显著的正相关。我们的结果表明，受试者与周围环境的视觉参与可能会影响他们对环境的生理反应：更多的参与可能会带来更多的放松。我们的结果还凸显了考虑注视轨迹详细时空特征的重要性。
