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CANTAB® Tests
Stop Signal Task (SST)

Overview

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.

Administration Time

Up to 20 minutes.

Task

This test consists of two parts:

  • In the first part, the participant 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 participant to practice this.
  • In the second part, the participant 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.

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

Test

SST has one mode: clinical. 

Interactive Demo



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