Some photos look normal at first glance... until they absolutely don’t. Whether it’s an optical illusion, a perfectly timed ...

Test your observation skills with this brain-teasing optical illusion! Two seemingly identical pictures of a family BBQ hide ...

In this black and white sketch, we see a leopard comfortably perched upon a tree enjoying his afternoon siesta. Oblivious to him, a fish is just around the corner (just a figure, rather than actual ...

The image features a giant number 9, which is intriguingly filled with a variety of digits including 0, 1, 2, 3, 4, 5, and of course, 9. At first glance, it may seem straightforward, but the challenge ...

Visual illusions are images that have tricked the human eyes and brain for a long time. These illusions can fool even the most observant eyes. Visual illusions have become a sensation on the ...

The area that you can see at one time without moving your eyes is called your field of vision or visual field. It may seem quite basic, but being able to name, analyze, and understand your field ...

Visual acuity is the most common clinical measurement of how your eyes function. It's usually one of the first tests taken during a comprehensive eye exam to determine how sharp your vision is. ‌ ...

Chen, her collaborator Mark Andermann, and their colleagues specifically explored the effects of serotonin on the early processing of visual information and its transfer from the eyes to the thalamus.