라벤다 오일의 농도변화가 뇌 활성에 미치는 영향
Influence of the Concentration of Lavender Oil on Brain Activity
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To evaluate the effect of the concentration of the lavender oil on brain activity, the changes ofelectrocephalograms (EEG) in subjects were investigated. EEG evaluation was assessed in 30 healthy femalesubjects who is in 20s and had normal sense of smell. The subjects with eyes closed were exposed underfour concentration of lavender oil (0.1, 1, 10, and 100%) during 20 sec, and EEG was recorded from 19 scalppositions of the international 10-20 system. EEG was evaluated based on the coefficient variation of brain (CVB)and the deviation compared to the background EEG induced under unstimulating condition. The lavenderactivated more alpha and theta waves on the ventral region (Fp1-F7-T3-T5-O1-O2-T6-T4-F8-Fp2) than thedorsal region, especially on the bitemporal (T3, T4), but it deactivated beta and gamma waves. The lavenderoil is either more activated or less deactivated major EEG indices such as relative brain powers, ASEF50,SEF50, and SEF90 on scalp regions showed lower activities compared to on other positions in backgroundEEG. The brain indices were significantly influenced with the concentration of lavender oil. With increasingthe concentration, gamma and beta waves were decreased, alpha waves were increased. The alpha waveand sensorimotor rhythm (SMR) were most activated by the Lavender Oil. In more than 1% oil concentrationthese phenomena appeared prominently, and especially both SEE50 indicating the state of arousal and SEF90indicating were decreased.
Abstract
To evaluate the effect of the concentration of the lavender oil on brain activity, the changes ofelectrocephalograms (EEG) in subjects were investigated. EEG evaluation was assessed in 30 healthy femalesubjects who is in 20s and had normal sense of smell. The subjects with eyes closed were exposed underfour concentration of lavender oil (0.1, 1, 10, and 100%) during 20 sec, and EEG was recorded from 19 scalppositions of the international 10-20 system. EEG was evaluated based on the coefficient variation of brain (CVB)and the deviation compared to the background EEG induced under unstimulating condition. The lavenderactivated more alpha and theta waves on the ventral region (Fp1-F7-T3-T5-O1-O2-T6-T4-F8-Fp2) than thedorsal region, especially on the bitemporal (T3, T4), but it deactivated beta and gamma waves. The lavenderoil is either more activated or less deactivated major EEG indices such as relative brain powers, ASEF50,SEF50, and SEF90 on scalp regions showed lower activities compared to on other positions in backgroundEEG. The brain indices were significantly influenced with the concentration of lavender oil. With increasingthe concentration, gamma and beta waves were decreased, alpha waves were increased. The alpha waveand sensorimotor rhythm (SMR) were most activated by the Lavender Oil. In more than 1% oil concentrationthese phenomena appeared prominently, and especially both SEE50 indicating the state of arousal and SEF90indicating were decreased.
참고문헌 (34)
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