Physiological and psychological effects of olfactory stimulation with D-limonene

Advances in Horticultural Science

C. Song¹  H. Koizumi¹  Y. Miyazaki¹  T. Okuda¹  H. Ikei¹  M. Igarashi¹  T. Yamaguchi¹  M. Takagaki¹  D. Joung²  B.J. Park² 

[1] Center for Environment, Health and Field Sciences, Chiba University, 6-2-1 Kashiwanoha, Kashiwa, Chiba 277-0882;Department of Environment and Forest Resources, Chungnam National University, 99 Daehak-ro, Yuseong-gu, Daejeon 305-764;

关键词: heart rate;    heart rate variability;    limonene;    physiological relaxation;   

DOI  :  10.13128/ahs-22808

来源: DOAJ

【 摘 要 】

Although D-Limonene can be considered an important component of nature-based stimuli, the physiological effects of olfactory stimulation with D-Limonene have not been completely clarified by scientific studies. The physiological and psychological effects of olfactory stimulation with D-Limonene were studied measuring heart rate variability (HRV), heart rate, and subjective evaluation using a modified semantic differential method; thirteen Japanese female university students (mean age±SD, 21.5±1.0 years) participated in the study. A concentration of 60 μL of D-Limonene was used as olfactory stimulant and room air as control. Subjects were exposed for 90 s while sitting with eyes closed. During D-Limonene inhalation: (1) the high-frequency (HF) value of HRV, a marker of parasympathetic nervous activity that is enhanced in relaxing situations, was significantly higher; (2) the heart rate was significantly lower; and (3) subjects reported feeling significantly more comfortable during D-Limonene administration than control. The results obtained clearly indicate that olfactory stimulation with D-Limonene induced physiological and psychological relaxation, providing important scientific evidence of the health benefits of D-Limonene.

【 授权许可】

Unknown