Measure response inhibition, impulse control, and action stopping under time pressure
You respond to the arrow direction as fast as possible: press the left button for a left arrow and the right button for a right arrow. If a red signal appears in the corner, do not press anything.
The Stop Signal Task (SST) is one of the best-known inhibitory control tests. It challenges your ability to respond quickly on go trials and cancel that response when the stop signal appears.
This makes the task useful for tracking a mix of speed, control, and consistency. If you are also interested in related skills, compare your results with the Flanker Test, Stroop Test, and Reaction Time Test.
Your points come from correct go responses and successful stops. Your final score is based on points multiplied by a speed factor derived from your mean correct go reaction time. Faster clean performance usually helps, but stop-errors can quickly lower the result.
It mainly measures inhibitory control: your ability to cancel a response that is already being prepared.
The score depends on both speed and control. A few stop-errors or wrong-direction presses can reduce your result even if your go responses feel fast.
Yes. Keyboard latency, browser scheduling, and display refresh rate can shift measured reaction times. Track progress on the same setup for cleaner comparisons.
No. This test is for training and self-tracking only. It is not a medical or clinical diagnostic instrument.
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