When you use your imagination, you activate the same regions of your visual cortex as those used to see the outer world.
Learn about phobias to snakes and spiders on this edition of A Moment of Science.
Mate selection is tricky business. Here's how one amphibian merges two senses to narrow down its options.
Rats have a strikingly different visual system than our own, one that is carefully attuned to their unique needs.
Vision may not involve creating an inner model of the world in the brain.
Perhaps imagining someone else with the qualities you admire is one way to develop them in yourself.
What kind of information does the brain need--and what processes does it go through--to convert a view of something into knowledge about that thing?
Not much, if anything, prior to around age four. Yet perception and cognition appear to be in place and functioning. Why are those years lost to us?
What is the next thing you do after you cry a little and flinch -- well rub the area where you got the ouch? Why do that?
Your laundry is a mix of clothes of all different colors. Why, then, does the lint that collects in the lint tray always come out a bland gray?