This geometrical optical illusion is hiding a secret alphanumeric—can you find it in 5 seconds?

What Is an Optical Illusion? An optical illusion is a visual phenomenon where the brain misinterprets what the eyes see. Instead of showing reality exactly as it is, optical illusions manipulate ...
Science Daily

Some claim culture affects our basic visual perception

Past research has suggested that people's cultural differences may result in differences in basic visual perception. New research found no evidence that these differences play a significant role in ...