Fig. 3From: Promoting adult health: the neurophysiological benefits of watering plants and engaging in mental tasks within designed environmentsComparison of EEG brainwave activity during the plant watering task and mental task (control) for 15 min. (A) High alpha brainwave activity 1–15 min between the two groups; (B) comparison of the overall mean power units values of high alpha brainwave between the two groups; (C) high beta brainwave activity 1–15 min between the two groups; (D) comparison of the overall mean power units values of high beta brainwave. N = 50; mean ± SD; *P < 0.05, paired t-testBack to article page