Side-by-side images show a 45,000-pixel rendering of a cat image at left, and a simulation representing an image rendered by 45,000 electrodes in a brain implant at right. (Credit: Ione Fine / ...

The brain divides vision between its two hemispheres—what's on your left is processed by your right hemisphere and vice versa—but your experience with every bike or bird that you see zipping by is ...

Incoming information from the retina is channeled into two pathways in the brain's visual system: one that's responsible for processing color and fine spatial detail, and another that's involved in ...