Standalone response-inhibition study
Stop-signal Study
This study is separate from the Executive Functions Study and has its own consent and demographics questionnaire. It includes a keyboard task based on the recommendations of Verbruggen and colleagues (2019). Choose the full administration or try the separate short pilot.
Research administration
Full task
240 main trials · 60 stop signals
Practice + four blocks
Allow 13–15 minutes including demographics
Open full task →Test the experience
Short pilot
40 main trials · 10 stop signals
Practice + two blocks
Allow 5–6 minutes including demographics
Open short pilot →Use a desktop or laptop with a physical keyboard. The pilot checks instructions, timing and result saving; it does not produce an SSRT score.
Researcher setup and local previews
Normal task links save to the existing HAWTIEL database. Both versions begin with study information, consent, demographics and the Get comfortable page. Preview links run without submitting data: full preview / pilot preview.
Read the task protocol and administration guide before recruitment.
Methodological source: Verbruggen et al., eLife 8:e46323. These schedules and browser implementation are HAWTIEL design choices, not a validated online instrument supplied by the authors.