关键词: EDA EEG Nature exposure restoration stress

来  源:   DOI:10.1111/sjop.13044

Abstract:
Spending time in nature, and even watching images or videos of nature, has positive effects on one\'s mental state. However, cognitively stressful work is often performed indoors, in offices that lack easy access to nature during breaks. In this study, we investigated whether watching a 5-min audiovisual video that describes a first-person perspective walk on a forest path could help to restore one\'s mental state after cognitive stress. Participants were asked to perform cognitive stressor tasks, after which they were shown either a nature walk video or a control video. Subjective restoration was measured using self-reports before and after the videos, while electrodermal activity (EDA) and electroencephalography (EEG) were measured during the video-watching session. The results showed that experiencing the nature walk video enhanced subjective restoration more than watching the control video. Arousal of the autonomic nervous system, measured using EDA, decreased more during the nature walk video than during the control video. Additionally, activity in the EEG\'s upper theta band (6-8 Hz) and lower alpha band (8-10 Hz) increased during the nature walk video, suggesting that it induced a relaxed state of mind. Interestingly, the participants\' connection with nature moderated the effects of the nature video. The subjective and physiological measures both suggest that watching a short, simulated nature walk may be beneficial in relaxing the mind and restoring one\'s mental state after cognitive stress.
摘要:
在大自然中度过时光,甚至观看自然的图像或视频,对一个人的精神状态有积极的影响。然而,认知紧张的工作通常在室内进行,在休息时无法轻松接近大自然的办公室。在这项研究中,我们调查了观看一段5分钟的视听视频是否有助于恢复认知压力后的精神状态,该视频描述了在森林小径上的第一人称视角步行。参与者被要求执行认知应激源任务,之后,他们展示了一个自然漫步视频或控制视频。主观恢复使用视频前后的自我报告进行测量,同时在视频观看期间测量皮肤电活动(EDA)和脑电图(EEG)。结果表明,体验自然行走视频比观看控制视频更能增强主观恢复。自主神经系统的觉醒,使用EDA测量,在自然行走视频期间比在控制视频期间减少更多。此外,在自然行走视频期间,EEG的上theta波段(6-8Hz)和下alpha波段(8-10Hz)的活动增加,这表明它引起了一种放松的心态。有趣的是,参与者与自然的联系缓和了自然视频的影响。主观和生理指标都表明,观看短片,模拟自然散步可能有利于放松精神和恢复认知压力后的精神状态。
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