Physiological effects of wood on humans: a review |
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Authors: | Harumi Ikei author-information" >,Chorong Song author-information" >,Yoshifumi Miyazaki |
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Affiliation: | 1.Center for Environment, Health and Field Sciences,Chiba University,Kashiwa,Japan;2.Forestry and Forest Products Research Institute,Tsukuba,Japan |
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Abstract: | It is empirically known that wood can cause a comfort enhancement effect in humans. On the other hand, not enough scientific knowledge based on evidence-based research is available on this subject. However, data using physiological indices have increasingly accumulated in recent years. This review provides an overview of the current situation for peer-reviewed reports related to the physiological effects of wood. We reviewed reports that elucidated the effects of wood-derived stimulations on the olfactory, visual, auditory, and tactile sensations using physiological indices such as brain activity (e.g., near-infrared spectroscopy) and autonomic nervous activity (e.g., heart rate variability and blood pressure). It became clear that many studies were limited by (1) a small number of participants, mostly aged in their 20s; (2) use of only a single stimulus (e.g., only olfactory or only visual), or (3) an incomplete experimental design. In addition, this review examined the field of forest therapy, for which there is abundant research. Further study is needed to elucidate the physiological effects of wood on humans. |
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