Can I run the Stop-Signal Task online?
Yes. ConductCognition runs the Stop-Signal Task in a browser-based participant flow with study setup, automated scoring, and export-ready results.
Response Inhibition
Stop-Signal Task
Estimate action-cancellation speed with an adaptive browser-native stop-signal workflow.
Useful for inhibition, impulsivity, ADHD-oriented, substance-use, and executive-control research protocols.
Response Inhibition7-10 minBrowser-based testing workflow
Preview
Cognitive test preview
What this task measures
Measures action cancellation by asking participants to make speeded left/right responses and withhold the response when a stop signal appears.
Core constructs
- Response inhibition
- Action cancellation
- Impulsivity control
- Executive control
Research fit
- Response inhibition research
- ADHD-oriented research batteries
- Substance-use and impulsivity protocols
- Executive-control intervention studies
Why researchers use ConductCognition
- Hosted browser delivery with no local install burden for participants.
- Study setup, scoring, exports, and participant links in one workflow.
- Transparent pricing instead of opaque enterprise quoting for solo labs.
- Free entry tier plus Academic Pro when you need the full battery and trial-level exports.
Paradigm overview
The Stop-Signal Task measures the ability to cancel an already initiated response. Participants respond quickly to left and right arrows on go trials, but on stop trials the arrow changes color after a stop-signal delay and the participant should withhold the response.
The stop-signal delay uses an adaptive staircase: successful stopping makes the next stop signal later, while failed stopping makes it earlier. This targets an interpretable stop success rate and supports stop-signal reaction time estimation using the integration method.
Key scoring outputs
Stop-Signal Reaction Time
msIntegration-method estimate of the covert stopping latency.
Lower is better when validity flags pass
Stop Success Rate
proportionProportion of stop trials where the participant successfully withheld a response.
Near 0.50 is expected under a working staircase
Go Reaction Time
msMean reaction time on correct go trials.
Informational
Go Accuracy
proportionProportion of go trials answered with the correct arrow key.
Higher is better
Failed-Stop RT
msMean reaction time on stop trials where the participant failed to inhibit.
Should usually be faster than go RT
Valid SSRT Flag
0/1Indicates whether core SSRT validity checks passed.
1 indicates interpretable SSRT
Research evidence and scoring context
Verbruggen F, Aron AR, Band GPH, et al. (2019). A consensus guide to capturing the ability to inhibit actions and impulsive behaviors in the stop-signal task. eLife, 8:e46323.
Reference reviewedN/A
Logan GD, Cowan WB (1984). On the ability to inhibit thought and action: a theory of an act of control. Psychological Review, 91(3):295-327.
Reference reviewedN/A
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Related task pages
Research FAQ
Common questions about this online cognitive test
What does this test measure?
Stop-Signal Task is used for response inhibition, action cancellation, impulsivity control research workflows.
What data can researchers export?
Researchers can export scored results, and paid plans support trial-level exports for deeper analysis.
Is this for clinical diagnosis?
ConductCognition is for research use. The platform supports task delivery, scoring, and exports; clinical interpretation remains outside the platform.