The stop signal task includes a stop signal presented with a delay after an arrow, requiring the participant to inhibit any key press.

“the arrow would pop up on the screen and your job is to press the left key when the right facing arrow is presented you press the right key okay pretty straightforward but there's a limited amount of time in which you can do this and the idea is that you're going to need to do this within approximately 500 milliseconds of the presentation of that Arrow or else it's going to tell you that you missed that trial”

“every once in a while that arrow is presented and then with some delay ranging from anywhere from 100 milliseconds to maybe 350 milliseconds there would be a red circle or a red X also presented which is a stop signal and your job is to not press the key that corresponds to the direction of arrow in fact not press any key at all”

“if the stop signal is presented very shortly after let's say 100 milliseconds which is very very brief amount of time after the presentation of the arrow there's a good chance that you're going to be able to withhold the key pressing behavior”