Effect of Michelia (Jumpee) Oil on Emotion: Emotional State and Psychophysiological Parameters Approach

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Jumpee (Michelia alba), a native Thai plant, is a fragrant flower. The important chemical composition that was found when extracted by steam distillation is linalool. The substance is similar to the chemical compound that found in lavender oil. The previous research has found that Lavender oil stimulated the inhaler to feel pleasant, satisfied, relaxed, helps to recovery mental state, stress, and anxiety. Researchers were interested to study whether jumpee oil can stimulate feelings of pleasantness, satisfaction and relaxation as lavender oil. Experimental study was performed with 23 participants. This study aimed to compare a pleasantness effect and arousal effect of jumpee oil versus lavender oil, civet oil, and sunflower oil (control oil). Mood changes of emotional state and physiological parameters were measured. A statistical analysis of one-way repeated analysis of variance was performed.
The findings were showed that jumpee oil induced the inhaler to feel pleasant by reducing the low frequency / high frequency ratio of the heart rate variability and stimulated a feeling of arousal by increasing the skin conductance response at a significant level of .05. The results of this study was a useful information for using aromatic flowers, jumpee, to improve mood. However, for better support information, further research should study the effect of jumpee oil on other physiological responses such as electromyography of electroencephalogram (brain waves).

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