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. Author manuscript; available in PMC: 2022 Oct 1.
Published in final edited form as: Neurosci Biobehav Rev. 2021 Jul 19;129:17–34. doi: 10.1016/j.neubiorev.2021.07.019

Fig. 1.

Fig. 1.

Examples of a rodent and human stop-signal task (SST). The rat is put in a test chamber with nose ports on one end and a food dispenser at the other. The beginning of a trial is cued by cage lights turning on, at which point the rat puts its nose in the central port to indicate readiness. On each trial, the rat hears an auditory cue that indicates the direction of the “go” response. On a go-only trial, the rat moves its nose to the indicated nose port following the required fixation time. On stop trials, a stop-signal consists of a subsequent burst of white noise. If the rat does not perform a trial accurately, the lights come back on and no sugar pellet is dispensed. If the trial is performed accurately, the rat receives a sugar pellet. Human participants perform a visual version of the SST on a computer. Go and stop signals consist of black and red arrows presented on the computer monitor and the participant uses buttons on a keyboard to respond.