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Researchers Find That Color Perception Is Not Innate, But Acquired After Birth

Date:
July 27, 2004
Source:
Cell Press
Summary:
Rearing experimental animals under special illumination, researchers have found new evidence that early visual experience is indispensable for the development of normal color perception.

Rearing experimental animals under special illumination, researchers have found new evidence that early visual experience is indispensable for the development of normal color perception.

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The wavelength composition of the light reflected from an object changes considerably in different conditions of illumination. Nevertheless, the color of the object remains the same. This property, so-called "color constancy," is the most important property of the color visual system. It has been unclear based on previous work whether the attribute of color constancy is innate or acquired after birth.

In work reported this week, researcher Yoichi Sugita of the Neuroscience Research Institute, Tsukuba, Japan, shows that visual experience in early infancy is indispensable for normal development of the color constancy. He raised baby monkeys for nearly a year in a separate room where the illumination came from only monochromatic lights. After extensive training afterwards, the monkeys were able to perform color matching tasks, but their judgment of color similarity was quite different from that of normal animals. Furthermore, they had severe deficits in color constancy; their color vision was very much wavelength-dominated, such that they were unable to compensate for the changes in wavelength composition. These results indicate that early visual experience is indispensable for normal color perception.

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Yoichi Sugita: "Experience in Early Infancy Is Indispensable for Color Perception"

Published in Current Biology, Volume 14, Number 14, 27 July 2004, pages 1267-1271.


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The above story is based on materials provided by Cell Press. Note: Materials may be edited for content and length.


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Cell Press. "Researchers Find That Color Perception Is Not Innate, But Acquired After Birth." ScienceDaily. ScienceDaily, 27 July 2004. <www.sciencedaily.com/releases/2004/07/040727085636.htm>.
Cell Press. (2004, July 27). Researchers Find That Color Perception Is Not Innate, But Acquired After Birth. ScienceDaily. Retrieved November 27, 2014 from www.sciencedaily.com/releases/2004/07/040727085636.htm
Cell Press. "Researchers Find That Color Perception Is Not Innate, But Acquired After Birth." ScienceDaily. www.sciencedaily.com/releases/2004/07/040727085636.htm (accessed November 27, 2014).

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