Shimizu K, Gyokusen M, Kitamura S, Kawabe T, Kozaki T, Ishibashi K, Izumi R, Mizunoya W, Ohnuki K, Kondo R
Bioscience, Biotechnology, and Biochemistry; 2008
This study examined the effects of odors on sustained attention during a vigilance task. Two essential oils (lavender and eucalyptus) and two materials (l-menthol and linalyl acetate) were compared with a control. The increase in reaction time was significantly lower with lavender than with the control. The results suggest that the administration of lavender helped to maintain sustained attention during the long-term task.
Shimizu K, Gyokusen M, Kitamura S, Et Al. Essential oil of lavender inhibited the decreased attention during a long-term task in humans. Biosci Biotechnol Biochem. 2008;72(7):1944-1947.