What is optical illusion squares?

Optical illusion squares are geometric patterns that use contrasting colors and lines to create the illusion of movement or depth, even though the squares are perfectly still. One popular example is the "spinning squares" illusion, where squares appear to spin in a circular motion when in reality they are stationary. Another example is the "tilted squares" illusion, where squares appear to be aligned at different angles. Optical illusion squares are often used in optical illusions and visual puzzles, such as in books or online games. They are also studied in psychophysics and neuroscience to understand how the human visual system processes visual information.