SST is a classic stop signal response inhibition test, which uses staircase functions to generate an estimate of stop signal reaction time.
This test gives a measure of an individual’s ability to inhibit a prepotent response.
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Administration time
Up to 20 minutes
Task
This test consists of two parts.
In the first part, the subject is introduced to the press pad, and told to press the left hand button when they see a left-pointing arrow, and the right hand button when they see a right-pointing arrow. There is one block of 16 trials for the subject to practice this.
In the second part, the subject is told to continue pressing the buttons on the press pad when they see the arrows, as before, but, if they hear an auditory signal (a beep), they should withhold their response and not press the button.
Test modes
SST has one mode: clinical.
Outcome measures
SST has 5 outcome measures, each of which can have various options applied to it. The SST measures cover direction errors, proportion of successful stops, RT on GO trials, SSD (50%), SSRT
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