| Title |
The Effect of Illumination Level and Light Color on Spatial Perception and Task Performance |
| Abstract |
This is an experimental research to find out the effect of illumination level and light color on spatial perception and task performance.A laboratory 3x5 factorial experiment design was planned. Illumination levels employed were 50,200, 500lx, while light colors white, yellow, red, green, blue, Spatial perception was measured by 7 point semantic differential scales of 25 descriptors whereas task performance measured by the time spent to finish the Leadolt Ring test. Alphabet design, one of the completely randomized block design was used with 30 subjects.With in the range of the illumination level, the higher level the more functionally, spatially and positively the space was perceived and the more efficient the task performance. The space was perceived more functionally, spatially and positively under cool light colors than under warm light colors, while the space more dynamically under warm light colors than under cool light colors. The task performance was more efficiently carried out under the cool light colors than under warm light colors.In conclusion it is proved that illumination level and light color had effects on spatial perception and task performance. In the light of developmental stage of environmental psychology, this study provided a good empirical evidence on the relationship between physical environment and human behavior. |