1 Laboratory of Horticultural Science, Graduate School of Agricultural and Life Sciences, University of Tokyo. Yayoi, Bunkyo-ku, Tokyo, 113-8657 Japan. Current address: National Research Institute of Vegetable, Ornamental Plants and Teas, 360 Kusaba, Ano, Age-gun, Mie-Prefecture, 514-2392, Japan.
2 Department of Horticulture and Landscape, Faculty of Plant Science, University of Reading, Whiteknights, PO Box 221, Reading, RG6 6AS, U.K.
Changes in human emotions were investigated during exposure to three different indoor conditions: floral display present, foliage display present, and no display present. There were 20 subjects (10 males and 10 females) in each condition. The subjects were shown a video that introduced the University of Reading and included scenes of landscapes. It was shown that a floral display had positive effects on human emotions, such as composition and confidence, however, some evidence of a significant increase in annoyance was also found for this treatment. The foliage display had a somewhat negative effect by slightly increasing bad temper, and the foliage display tended to have a positive effect on clearheadedness. Investigations of psychological responses to nature are complex, and many opportunities for more work exist.
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