Impact of artificial colored lights on performance in working memory task.

The contemporary lifestyle obligates exposure to artificially illuminated environments often with a variation in spectral composition of light. The wavelength of light, perceived as the color, differentially stimulates the short, medium, and long wavelength cones. Through the non-image-forming pathways, light possibly affects cognitive functions including working memory.

Attentional Correlates of Colored Lights: Considerations for Cognitive Testing.

Attention, an important index of cognitive function, can be affected amidst colored lights. This work investigated the effects of colored lights on the performance in attention task. Participants (N = 42) performed in one, two, and three letter cancellation task (LCT) during four lighting conditions.