PDF(Pubmed)
Abstract：
We explored differences in the course of physiological functions and in the subjective evaluations in response to listening to a 7-min recording of the sound of a chainsaw and to the sounds of a forest. A Biofeedback 2000x-pert apparatus was used for continual recording of the following physiological functions in 50 examined persons: abdominal and thoracic respiration and their amplitude and frequency, electrodermal activity (skin conductance level), finger skin temperature, heart rate (pulse, blood volume pulse and blood volume pulse amplitude) and heart rate variability (HRV). The group of 25 subjects listening to the sound of a chainsaw exhibited significantly lower values of blood volume pulse amplitude, lower values in peak alpha frequency HRV and higher values in peak high-frequency HRV. In the time interval from 80 s to 209 s, in which the two groups showed the greatest differences, lower values of blood volume pulse were also recorded while listening to the sound of a chainsaw. Listening to the sound of a chainsaw is associated with a greater feeling of fatigue and higher tension, while listening to the sounds of a forest is even considered to elicit feelings of improved learning abilities. The assumption that listening to the sound of a chainsaw results in higher defense arousal was confirmed. The greater variability which is exhibited by a majority of physiological functions while listening to the forest sounds may also be an innovative finding. It seems that there are two types of arousal (sympathetic and parasympathetic) following from correlations between physiological functions and subjective assessment. Low values of blood volume pulse amplitude are especially important from the health perspective. They correspond to the amount of vasoconstriction which occurs in the endothelial dysfunction related to increased mortality, incidence of myocardial infarction, leg atherosclerosis and topically to COVID-19.
摘要：
我们探索了生理功能过程和主观评估中的差异，以响应听电锯声音和森林声音的7分钟录音。生物反馈2000x-pert仪器用于连续记录50名受检者的以下生理功能：腹部和胸部呼吸及其幅度和频率，皮肤电活动（皮肤电导水平），手指皮肤温度,心率（脉搏，血容量脉搏和血容量脉搏振幅）和心率变异性（HRV）。听电锯声音的25名受试者组表现出明显较低的血容量脉冲振幅值，峰值α频率HRV值较低，峰值高频HRV值较高。在80s到209s的时间间隔内，其中两组表现出最大的差异，在听电锯的声音时，还记录了较低的血容量脉搏值。听电锯的声音与更大的疲劳感和更高的紧张感有关，而听森林的声音甚至被认为会引起学习能力提高的感觉。确认了听电锯声音会导致更高的防御唤醒的假设。在听森林声音时，大多数生理功能表现出的更大的变异性也可能是一个创新的发现。根据生理功能和主观评估之间的相关性，似乎有两种类型的唤醒（交感神经和副交感神经）。从健康的角度来看，低值的血容量脉冲幅度尤其重要。它们对应于与死亡率增加相关的内皮功能障碍中发生的血管收缩量。心肌梗塞的发生率，腿部动脉粥样硬化和局部感染COVID-19。
