When you use your imagination, you activate the same regions of your visual cortex as those used to see the outer world.
Not only are 8% of men colorblind, but even compared to men who can distinguish between reds and greens, many women may live a more colorful existence. That’s because about 40% of women possess two types of so-called red cones, a key gene involved in enabling one to see the color red. Learn more on this Moment of Science.
Ever wonder how night vision goggles work? Seeing in the Dark, on today's Moment of Science.