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 ...

The human brain actively keeps "learning" in balance by holding on to what matters and letting go of what does not.

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 ...

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 ...

Here's a visual illusion that catches the brain in the act of making up color. Arrange a set of black spokes radiating from a center, then recolor short pieces of each spoke to red or blue, ...

See more of our trusted coverage when you search. Prefer Newsweek on Google to see more of our trusted coverage when you search. The colors we see may get increasingly dull as we get older, scientists ...