Stop-Signal Task
Inhibitory control task estimating stop-signal reaction time (SSRT).
Frequently Asked Questions
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What is the Stop‑Signal Task (SST)?
A response inhibition paradigm: keep responding on GO trials and stop when a stop signal appears; used to estimate SSRT.
How does the adaptive SSD work?
An adaptive staircase adjusts the stop‑signal delay: increase after a successful stop, decrease after a failed stop, targeting a balanced stop rate.
Which metrics are reported?
Mean GO reaction time (RT), stop success rate, mean SSD, and SSRT estimated with the mean method: SSRT = mean GO RT − mean SSD, with the staircase holding stop success near 50%.
How do I respond?
Respond to GO trials with J/F/Space; stop responding when the red STOP appears.
What does this have to do with everyday phone use?
The stop-signal task trains the real-world skill of braking an action that has already started — like stopping a scroll halfway through. Your stop-signal reaction time measures how quickly that brake works.
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References
- 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. 10.1037/0033-295X.91.3.295
- Verbruggen, F., Aron, A. R., Band, G. P. H., Beste, C., Bissett, P. G., Brockett, A. T., ... Boehler, C. N. (2019). A consensus guide to capturing the ability to inhibit actions and impulsive behaviors in the stop-signal task. eLife, 8, e46323. 10.7554/eLife.46323
- Verbruggen, F., & Logan, G. D. (2008). Response inhibition in the stop-signal paradigm. Trends in Cognitive Sciences, 12(11), 418-424. 10.1016/j.tics.2008.07.005
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About This Experiment
This experiment is an educational adaptation for demonstration purposes. It is not a clinical diagnostic tool. Results reflect your performance in this specific session and should not be interpreted as an assessment of your cognitive abilities.
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