|Budget Amount *help
¥3,600,000 (Direct Cost: ¥3,600,000)
Fiscal Year 2001: ¥400,000 (Direct Cost: ¥400,000)
Fiscal Year 2000: ¥400,000 (Direct Cost: ¥400,000)
Fiscal Year 1999: ¥2,800,000 (Direct Cost: ¥2,800,000)
Until March of 2000, data of sensory evaluation on the influence of colors on odor sensation were collected for 500 subjects Nine colors laid on clothes in glass bottles, those on papers wound around plastic bottles, those of colored liquid contained in glass bottles and those emitted from CRT's, were adopted as the color sources. The odors were limonene, dtral, 1-carbone 1-octen-3-ol, cinamic aldehyde, perilla aldehyede, α-pinene, rose-p, isovaleric acid, r -decalactone, and trimethyl amine. By applying factor analyris to each sensory evaluation date set, three factors were determined The first one was goodness of odor, the second was activity of oder and the third was rurality of order. These factors were influenced by the colors to different degrees, which were classified into there categories. Namely for the first factor, (1)colors do not influence. (2)Cdors influence to different degrees in one direction, say goodness or badness.
(3) colors influence to different degrees in the two
directions, say goodness or badness. These results show that the influences of colors on the sensing of odors can be discussed in a unified frame work.
Arguments along the same lines were presented at the annual meeting of sensory engineering, 2000, for the second and third factors. In 2001, the influence of the colored cloth was reinvestigated A plastic bottle was wholly covered with colored doth. The subjects were chosen from male and female university students. The sensory data with the previous ones were first analysed with regression analysis method It was found that the matenials that bear the colors give substantial influences on the oder sensing. It was also found that sexuality exerts definite influences on the oder sensing. The influences of colors on the odor sensing are dassified into four categories : with an addional one that shows only small effect.
Also it was found that Hue strengthens the goodness sense of the colors, while yellow strengthens the badness sense. An addional condusion was obtaind for the characteristic of odor sensing of Japanese that an intimate relation through odor sensing is being established between the people and nature. Less