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이준연(Jun-Yeon Lee),고문이(Moon-Yi Ko),김재승(Jae-Seung Kim),박찬익(Chan-Ik Park) 한국화장품미용학회 2015 한국화장품미용학회지 Vol.5 No.2
Formalin-induced 22-kHz ultrasonic vocalizations by rats have been implicated to be a behavioral marker of negative affective state. Lavender essential oil is predominantly used as a relaxant, sedative and anxiolytic action in aromatherapy. The aim of this study was to evaluate whether there inhibition effect in lavender aganist to formalin–induced negative affective state, By measuring 22-kHz frequency ultrasonic vocalizations in rats. Increased 22-kHz frequency ultrasonic vocalizations were monitored after injecting of 5% formalin on hindpaw. Lavender essential oil showed inhibition effect against formalin-induced 22-kHz ultrasonic vocalizations with no affect comparing to the pre-treatment 22-kHz ultrasonic calls. These results suggest that formalin-induced negative affective state can be inhibited by lavender essential oil.