(-)-Bornyl acetate induces autonomic relaxation and reduces arousal level after visual display terminal work without any influences of task performance in low-dose condition

Matsubara, Eri; Fukagawa, Masafumi; Okamoto, Tsukasa; Ohnuki, Koichiro; Shimizu, Kuniyoshi; Kondo, Ryuichiro

doi:10.2220/biomedres.32.151

Cited by 20 publications

(13 citation statements)

References 25 publications

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“…11) Bornyl acetate, which is a component of forest air induces the autonomic nervous system to relax. 14) Four healthy volunteers walked for 60 min in a forest located at Tsubetsu. Figure 3a shows the GC-mass chromatogram of blood from one subject in the morning before the forest walk.…”

Section: Resultsmentioning

confidence: 99%

Conifer-Derived Monoterpenes and Forest Walking

et al. 2015

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Conifer and broadleaf trees emit volatile organic compounds in the summer. e major components of these emissions are volatile monoterpenes. Using solid phase microextraction ber as the adsorbant, monoterpenes were successfully detected and identi ed in forest air samples. Gas chromatography/mass chromatogram of monoterpenes in the atmosphere of a conifer forest and that of serum from subjects who were walking in a forest were found to be similar each other. e amounts of α-pinene in the subjects became several folds higher a er forest walking. e results indicate that monoterpenes in the atmosphere of conifer forests are transferred to and accumulate in subjects by inhalation while they are exposed to this type of environment.Please cite this article as: Mass Spectrom (Tokyo) 2015; 4(1): A0042

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Section: Resultsmentioning

confidence: 99%

Conifer-Derived Monoterpenes and Forest Walking

et al. 2015

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“…Compared with the control condition, the participants' heart rate and alpha band power after the task in the presence of Siberian fir leaf oil were decreased and the theta band power was increased. Matsubara et al [56] also investigated the effects of (-)-bornyl acetate, one of main components contained in the leaves of the Siberian fir, following the same experimental design. After the VDT task in the presence of (-)-bornyl acetate, the sympathetic nervous activity was decreased and the theta band powers increased compared with task performed under the control condition.…”

Section: Olfactory Stimulationmentioning

confidence: 99%

Physiological effects of wood on humans: a review

2016

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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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“…The odorant delivery system (illustrated in Fig. 2, (19)(20)(21)(22)) was controlled by a constant-flow olfactometer that forced air at a constant rate of 1.0 L min −1 through Teflon tubing into a charcoal trap. The air was then put in a 300-mL glass chamber (Sansyo, Tokyo, Japan) with or without the V. zizanioides roots.…”

Section: Materials and Chemicalsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

“…Although the roots of V. zizanioides have been used as described above since ancient times, and impressions of the volatiles of the roots were different from those of the essential oil, the effects of the volatiles directly emitted from the roots of V. zizanioides have not been explored. We previously established an experimental method to evaluate the effects of aromatic herbs in relation to the performance of a visual discrimination task (19)(20)(21)(22). Aromatic herbs act through olfactory pathways in the brain, including the cerebral cortex, hypothalamus and amygdala, which are different from the visual transduction and processing path-mass spectrometer (GC-MS) (GC-17A-QP5050; Shimadzu Co., Ltd., Kyoto, Japan) equipped with a DB-5 column (30 m × 0.25 mm i.d., 0.25 μm film thickness; Agilent Technologies Japan Ltd., Tokyo, Japan) and with both solid-phase microextraction (SPME) fiber coated with a 65-μm-thick layer of PDMS/DVB (Supelco, Bellefonte, PA, USA) and a Curie-point pyrolyzer (Japan Analytical Industry Co., Ltd., Tokyo, Japan).…”

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Volatiles emitted from the roots of Vetiveria zizanioides suppress the decline in attention during a visual display terminal task

et al. 2012

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The perennial grass Vetiveria zizanioides (vetiver) is mainly cultivated for its fragrant essential oil. Although the components of the oil and their biological activities have been studied extensively, the effect of the volatiles emitted from the roots of V. zizanioides on humans has so far remained unexplored. We investigated the effects of volatile compounds emitted from the cut roots of V. zizanioides (1.0 g, low-dose conditions; 30 g, high-dose conditions) on individuals during a visual display terminal task. Participants who breathed the volatile compounds emitted under low-dose conditions showed faster reaction times and stimulation of sympathetic nerve activity as measured by electrocardiography. These effects were not observed under high-dose conditions. The total amount of volatiles emitted during the experiment was 0.25 μg under low-dose conditions and 1.35 μg under high-dose conditions. These findings indicate that volatile compounds emitted from the roots of V. zizanioides under low-dose conditions may have helped subjects to maintain performance in visual discrimination tasks while maintaining high sympathetic nerve system activity.The perennial grass Vetiveria zizanioides is widely cultivated, especially in Southeast Asia. The roots of V. zizanioides (Fig. 1) contain many volatile compounds; the essential oil, collected by steam distillation of the roots, is a viscous liquid that varies in color from amber to dark brown (4, 26), and in general, its odor is described as earthy and woody (2). Because of its excellent fixative properties, V. zizanioides is one of the most important raw materials in perfumery (16,23). The authors of most of the previous studies of V. zizanioides have aimed to identify the compounds of the essential oil prepared from the roots of V. zizanioides and elucidate the activities of this essential oil (3,5,8,11,15,18,35). The qualities of the essential oil prepared from the roots of V. zizanioides depend on genetic, environmental and technological factors (17,25). Although the roots of V. zizanioides have been used as described above since ancient times, and impressions of the volatiles of the roots were different from those of the essential oil, the effects of the volatiles directly emitted from the roots of V. zizanioides have not been explored. We previously established an experimental method to evaluate the effects of aromatic herbs in relation to the performance of a visual discrimination task (19)(20)(21)(22). Aromatic herbs act through olfactory pathways in the brain, including the cerebral cortex, hypothalamus and amygdala, which are different from the visual transduction and processing path-

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(-)-Bornyl acetate induces autonomic relaxation and reduces arousal level after visual display terminal work without any influences of task performance in low-dose condition

Cited by 20 publications

References 25 publications

Conifer-Derived Monoterpenes and Forest Walking

Conifer-Derived Monoterpenes and Forest Walking

Physiological effects of wood on humans: a review

Volatiles emitted from the roots of Vetiveria zizanioides suppress the decline in attention during a visual display terminal task

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