Between-subjects speed-accuracy trade-off for a random dot motion task

How extreme can we make the speed-accuracy trade-off and still see adequate performance? At what point does does a participant just start guessing? 400 participants were assigned to one of eleven speed-accuracy emphasis groups. Each group experienced a different average deadline time throughout the entire experiment, ranging from 200 ms to 2500 ms. One group was used as an approximate control, where every trial had a six second deadline. Speed-accuracy was emphasised using implicit deadlines rather than explicit instructions. Response time and accuracy (of attempted trials) increased as deadline increased, and showed an interaction with trial coherence. The resulting figure looks pretty cool. Miss rate (of all trials) decreased as deadline increased, reaching nearly 0% for the control group.