This study aims to verify the effects of nature sounds on attention, and physiological and psychological relaxation. Twenty-six university students (mean age: 21.5 ± 1.9 years) participated in this study, and the experiment was conducted with one person at a time. A mixed sound of valley water and birds in a forest environment was used as the nature sound, and a road traffic sound was used as the urban sound (control). The participants performed the following steps: (1) closed their eyes and rested for 1 min; (2) opened their eyes and completed attention tasks while hearing nature or urban sounds for 1 min; (3) closed their eyes again and rested while hearing the same sound for 1 min. We used Harris and Harris grid for the attention task. We measured the participants’ oxy-hemoglobin concentration, heart rate variability, and heart rate for physiological evaluation, and used semantic differential method, and profile of mood states for psychological evaluation. As a result, ① There was no significant difference in the results of the attention task; however, the scores were slightly higher when hearing nature sound. ② The oxy-hemoglobin concentration and heart rate was lower, and parasympathetic nerve activity was enhanced when hearing nature sound than when hearing urban sound. ③ Once participants heard nature sound, they felt more comfortable, relaxed, and natural, and the negative mood state was lower, while the positive mood state was higher than urban sound. This suggests that hearing nature sounds may be an effective way to relieve stress in everyday life.

本研究旨在验证自然声音对注意力以及生理和心理放松的影响。26 名大学生（平均年龄：21.5 ± 1.9 岁）参与了这项研究，实验每次只对一人进行。将森林环境中山谷水声和鸟类的混合声音用作自然声音，将道路交通声音用作城市声音（控制）。参与者执行以下步骤：（1）闭上眼睛休息 1 分钟；(2) 睁开眼睛并在听到自然或城市声音 1 分钟时完成注意任务；(3)再次闭眼休息，同时听到同样的声音1分钟。我们使用 Harris 和 Harris 网格来完成注意力任务。我们测量了参与者的氧合血红蛋白浓度、心率变异性、和心率用于生理评估，并使用语义差异方法，以及用于心理评估的情绪状态概况。结果，①注意任务的结果没有显着差异；然而，当听到自然声音时，分数略高。②听自然声音比听城市声音时氧合血红蛋白浓度和心率较低，副交感神经活动增强。③ 被试一旦听到大自然的声音，就会感到更加舒适、放松、自然，消极情绪状态较低，而积极情绪状态高于城市声音。这表明聆听大自然的声音可能是缓解日常生活压力的有效方法。心理评估的情绪状态概况。结果，①注意任务的结果没有显着差异；然而，当听到自然声音时，分数略高。②听自然声音比听城市声音时氧合血红蛋白浓度和心率较低，副交感神经活动增强。③ 被试一旦听到大自然的声音，就会感到更加舒适、放松、自然，消极情绪状态较低，而积极情绪状态高于城市声音。这表明聆听大自然的声音可能是缓解日常生活压力的有效方法。心理评估的情绪状态概况。结果，①注意任务的结果没有显着差异；然而，当听到自然声音时，分数略高。②听自然声音比听城市声音时氧合血红蛋白浓度和心率较低，副交感神经活动增强。③ 被试一旦听到大自然的声音，就会感到更加舒适、放松、自然，消极情绪状态较低，而积极情绪状态高于城市声音。这表明聆听大自然的声音可能是缓解日常生活压力的有效方法。②听自然声音比听城市声音时氧合血红蛋白浓度和心率较低，副交感神经活动增强。③ 被试一旦听到大自然的声音，就会感到更加舒适、放松、自然，消极情绪状态较低，而积极情绪状态高于城市声音。这表明聆听大自然的声音可能是缓解日常生活压力的有效方法。②听自然声音比听城市声音时氧合血红蛋白浓度和心率较低，副交感神经活动增强。③ 被试一旦听到大自然的声音，就会感到更加舒适、放松、自然，消极情绪状态较低，而积极情绪状态高于城市声音。这表明聆听大自然的声音可能是缓解日常生活压力的有效方法。