Go/No-Go

Test your impulse control. React fast to green, hold back on red.

• A large square appears — green or red.
• Green — click it as fast as you can.
• Red — do not click. Resist the impulse.
• 20 rounds. Every mistake counts.

The Go/No-Go test is a classic measure of inhibitory control — the brain's ability to suppress automatic responses. It's used in psychology research and cognitive neuroscience to assess impulse control and executive function.