Add Yahoo as a preferred source to see more of our stories on Google. What color is a tree, or the sky, or a sunset? At first glance, the answers seem obvious. But it turns out there is plenty of ...

Red traffic lights make drivers stop. The color red produces a signaling and warning effect. But is this also reflected in the brain? Researchers at the Ernst Strüngmann Institute (ESI) for ...

* Purple is a non-spectral color created by the brain from red and blue signals * Individual differences in eyes and brain make each person see colors uniquely * All colors we //perceive, including ...

Even though the human visual system has sophisticated machinery for processing color, the brain has no problem recognizing objects in black-and-white images. A new study from MIT offers a possible ...

We see color because photoreceptor cones in our eyes detect light waves corresponding to red, green, and blue, while dimness or brightness is detected by photoreceptor rods. Many non-mammalian ...