The Science: Stop-Signal Task (SST)

This game is a Stop-Signal Task (SST). It is a primary tool used in neuroscience to measure and train **response inhibition** (your brain’s ability to “stop” an action that’s already underway).

The game first builds an automatic, fast “Go” response by having you tap on the green light. Then, it challenges you to inhibit this “Go” response when the “Stop” signal (red light) appears *after* the “Go” signal. This creates a conflict in the brain between the “Go” process and the “Stop” process. Successfully winning this conflict (by not tapping) strengthens the executive control networks in your prefrontal cortex.

Who can benefit from this game?

This exercise may be helpful for:

• Individuals working on impulsivity (e.g., acting without thinking).
• People practicing managing compulsions or cravings.
• Anyone looking to improve their self-control and attentional “brakes.”

Scientific Effectiveness & References

This is an evidence-informed skills trainer. The Stop-Signal Task is a “gold standard” paradigm for studying inhibitory control, a core deficit in conditions like ADHD, substance use disorders, and OCD.

• Logan, G. D., & Cowan, W. B. (1984). On the ability to inhibit thought and action: A theory of an act of control. Psychological Review, 91(3), 295–327.
• Verbruggen, F., & Logan, G. D. (2008). Response inhibition in the stop-signal paradigm. Trends in Cognitive Sciences, 12(11), 418-424.