A research group led by Associate Professor Chihiro Hiramatsu of the Kyushu University Graduate School of Design and Tatsuhiko Takashima, a graduate of the Faculty of Design, has discovered that differences in color vision, such as dichromatic vision and trichromatic vision, affect the line of sight when viewing paintings. However, experiments have shown that it has no significant effect on the color impression of paintings.
The general color vision of humans is trichromatic, but some people have a minority form of color vision, such as dichromatic vision, due to differences in the types of cone cells located at the back of the eyeballs and the absorption wavelength range.Currently, computer simulations have made it possible for people with typical trichromatic vision to simulate the way dichromatic vision appears, but color vision differences may vary in the line of sight when viewing a scene and the impression received from the scene. It was not known how it would be affected.
The researchers enlisted the help of 2 people with different color vision, such as dichromatism or trichromacy, to measure the line of sight when viewing pictorial images with various spatial distributions of color and brightness.Participants were also asked to rate their impressions of each painting using various adjectives.Furthermore, half of the people with typical trichromatic vision were asked to view images that simulated the way dichromatic vision appears, and the differences were verified.
As a result, a correlation analysis of gaze revealed that the gaze of trichromatic individuals is more similar than that of dichromatic individuals.This suggests that in trichromatic vision, color information plays an important role in guiding the gaze.
On the other hand, in terms of color impressions, there was no major difference between dichromatic vision and trichromatic vision; in fact, it was found that the color impressions of trichromatic people who saw images that simulated dichromatic vision were different and poorer. .The fact that color impressions are not greatly affected by genetic differences in color vision means that both dichromatic and trichromatic people develop their own unique color sense by experiencing their own innate color space throughout their lives. It is thought that it is possible to acquire and have a unique impression.
When a person with trichromatic vision looks at the way a person with dichromatic vision sees, they may feel that the colors are lacking, but it has become clear that individuals form rich impressions through experience, regardless of their natural color vision. It can be said thatIn the future, we hope to elucidate how color impressions are formed.
Paper information:[Proceedings of the Royal Society B: Biological Sciences] Influence of color vision on attention to, and impression of, complex aesthetic images
