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http://dx.doi.org/10.5352/JLS.2012.22.2.192

Effects of Lavandula angustifolia Aroma on Electroencephalograms in Female Adults with Sleep Disorders  

Jung, Han-Na (Department of Smart Foods and Drugs, Inje University)
Choi, Hyun-Ju (Department of Biomedical Laboratory Science and Elderly Life Redesign Institute, Inje University)
Publication Information
Journal of Life Science / v.22, no.2, 2012 , pp. 192-199 More about this Journal
Abstract
This study investigated the effects of Lavandula angustifolia (L. angustifolia) aroma on the brain electrical activity evaluated by electroencephalogram (EEG) in female adults with sleep disorders. The subjects were 28 healthy female adults and their sleep disorders were classified by the Pittsburgh Sleep Quality Index. EEG electrodes were attached at the frontal (F3, F4), temporal (T3, T4), occipital (O1, O2), parietal (P3, P4), reference, and ground regions according to the International 10-20 system. Subjects were exposed to the L. angustifolia aroma for 3 min. Results showed that L. angustifolia aroma decreased the occipital and parietal alpha powers, and increased the frontal theta power and occipital beta power in subjects with good sleep quality. On the other hand, L. angustifolia aroma increased the theta power in the all cranial regions after aroma treatment in subjects with poor sleep quality. In conclusion, L. angustifolia aroma diminishes a state of wakefulness in the brain and helps individuals to fall asleep. Therefore, L. angustifolia aroma may have beneficial effect for female adults with sleep disorders.
Keywords
EEG; Lavandula angustifolia; sleep disorder; PSQI;
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