著者

中本 有美 仁科 弘重 増井 典良 橋本 康

出版者

日本生物環境工学会

雑誌

植物工場学会誌 (ISSN:09186638)

巻号頁・発行日

vol.11, no.2, pp.136-139, 1999-06-01 (Released:2011-03-02)

参考文献数

7

被引用文献数

2 2

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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 (c). 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.

著者

浅海 英記 仁科 弘重 中村 博文 増井 典良 橋本 康

出版者

日本生物環境工学会

雑誌

植物工場学会誌 (ISSN:09186638)

巻号頁・発行日

vol.7, no.3, pp.138-143, 1995-09-01 (Released:2011-03-02)

参考文献数

5

被引用文献数

22 14

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In this study, three experiments were performed in order to investigate the effect of ornamental foliage plants on visual fatigue caused by visual display terminal operation. Visual fatigue was evaluated as critical flicker fusion frequency (CFF). Four students served as subjects in each experiment.The experiment (1) was carried out to examine the reduction of visual fatigue by viewing plants during visual display terminal operation. As the results, the CFF of the subjects in case of viewing plants was higher than that in case of viewing no plant. Especially, the difference of the CFF of the subject A was 9.3%.The experiment (2) was carried out to examine the recovery of visual fatigue by viewing plants after visual display terminal operation. As the results, the CFF of the three subjects except A increased in case of viewing plants and decreased in case of viewing no plant. The differences of the CFF of the subjects B and D were 4.6% and 3.6% respectively.The experiment (3) was carried out to determine whether difference in kinds of plants could bring about difference of the recovery of visual fatigue. As the results, average of the CFF of the subjects in case of viewing Schefflera arboricola “Hong Kong”, Cupressus macrocarpa “Gold Crest” and no plant decreased by 2.7%, 3.1% and 6.0% respectively, while average of the CFF of the subjects in case of viewing Dracaena fragrans “Massangeana” showed an increase of 0.6%.