How good is your mental speed at observing hidden details? Solve this optical illusion to find out! Only if you are visually ...

Optical illusions with hidden images are amazing for testing your visual powers. These illusion images challenge your brain's ...

When you solve brain teasers, your prefrontal cortex and parietal lobes—areas responsible for logic, reasoning, and visual ...

Visual illusions are images that play tricks with our eyes and brain. These puzzles are excellent for testing an individual's visual acuity. These mind-bending images challenge our perception and ...

The human visual system excels in interpreting complex visual scenes, with symmetry perception playing a pivotal role in organising sensory input into coherent representations. Visual symmetry ...

Can you do 3D puzzles...without using your hands? Our visual-spatial intelligence test assesses your ability to mentally manipulate 3D objects, a skill that has practical significance in everyday life ...

A simple visual test is surprisingly accurate at predicting IQ, according to new research. The study, published today (May 23) in the journal Current Biology, found that people's ability to ...