Analysis of amenity effect on human psychology as affected by ornamental foliage plants used as a screen

摘要

In the present study, amenity effect on human psychology as affected by ornamental foliage plants used as a screen was analyzed by means of electroencephalogram (EEG) and semantic differential technique.The experiments were carried out in a room at Ehime University in November and December of 1997. The following three conditions concerning the arrangement of ornamental foliage plants or screens around the subject were rated by eleven students. (a) a screen on each side of the subject (b) a screen on the one side and three ornamental foliage plants on the other side of the subject(c) three ornamental foliage plants on each side of the subjectelectroencephalogram of each student were measured in the room. Ratio of alpha wave to beta wave was calculated as an index expressing the degree of amenity. As for semantic differential technique, factor analysis was performed based on nineteen SD scales.Higher ratio of alpha wave to beta wave was observed in the condition ?. Two factors were extracted by the factor analysis. The factor scores of the condition (b) and the condition (c) were higher than the factor score of the condition (a). these results indicated the amenity effect on human psychology by plants.