Publication:
The effects of lavender oil inhalation on emotional states, autonomic nervous system, and brain electrical activity

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Issued Date

2012

Resource Type

Article

File Type

application/pdf

ISSN

1252208

Other identifier(s)

2-s2.0-84859709966

Rights Holder(s)

Scopus

Bibliographic Citation

Journal of the Medical Association of Thailand. Vol 95, No.4 (2012), p.598-606

Suggested Citation

Sayorwan W., Siripornpanich V., Piriyapunyaporn T., Hongratanaworakit T., Kotchabhakdi N., Ruangrungsi N. The effects of lavender oil inhalation on emotional states, autonomic nervous system, and brain electrical activity. Journal of the Medical Association of Thailand. Vol 95, No.4 (2012), p.598-606. Retrieved from: https://hdl.handle.net/20.500.14740/7090

Title

The effects of lavender oil inhalation on emotional states, autonomic nervous system, and brain electrical activity

Author(s)

Sayorwan W.
 Siripornpanich V.
 Piriyapunyaporn T.
 Hongratanaworakit T.
 Kotchabhakdi N.
 Ruangrungsi N.

Abstract

Objective: Investigate the effects of lavender oil on the central nervous system, autonomic nervous system, and mood responses in humans after inhalation. Material and Method: Twenty healthy volunteers participated in the experiments. The present study assessed autonomic parameters such as blood pressure, heart rate, respiratory rate, and skin temperature to determine the arousal level of the autonomic nervous system. In addition, subjects were asked to estimate their mood responses such as feeling pleasant or unpleasant, uncomfortable, sensuality, relaxation, or refreshing in order to assess subjective behavioral arousal. Finally, electroencephalogram (EEG) was recorded from 31 electrodes on the scalp according to the international 10 to 20 system, and EEG power spectra were calculated by Fast Fourier Transform (FFT). Data was analyzed by comparing the effects of lavender oil on physiological and mood states with sweet almond oil. These assessments were measured before and after using paired t-test statistical procedure. Results: The results revealed that lavender oil caused significant decreases of blood pressure, heart rate, and skin temperature, which indicated a decrease of autonomic arousal. In terms of mood responses, the subjects in the lavender oil group categorized themselves as more active, fresher, relaxed than subjects just inhaling base oil. Compared with base oil, lavender oil increased the power of theta (4-8 Hz) and alpha (8-13 Hz) brain activities. The topographic map showed obviously more scattering power in alpha range waves particularly in bilateral temporal and central area. Conclusion: The findings provided evidence the relaxing effect of inhaling lavender oil.

Subject(s)

Almond oil
 Lavender oil
 Adult
 Alpha rhythm
 Arousal
 Article
 Autonomic nervous system
 Breathing rate
 Central nervous system
 Comparative study
 Diastolic blood pressure
 Electroencephalography
 Emotion
 Female
 Heart rate
 Human
 Leisure
 Male
 Mood
 Normal human
 Skin temperature
 Systolic blood pressure
 Theta rhythm
 Visual analog scale
 Administration, Inhalation
 Adolescent
 Adult
 Autonomic Nervous System
 Brain
 Emotions
 Female
 Humans
 Male
 Oils, Volatile
 Plant Oils
 Young Adult

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URI

https://hdl.handle.net/20.500.14740/7090

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Scopus: Year 1983-2021

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