The clock hand started at a random position in each trial, and stopped at random 1500 2500 ms after the event that was judged.
At the time of discontinuation of the glycemic arm of the trial (and stopping intensive treatment), a large proportion of participants had not completed 3 years in the trial.
The whole-brain F-test revealed several regions which showed a significant difference in activation between double trials and stop trials, including a prominent cluster of voxels with a peak in the right insula.
Additional threats included the necessary lack of blinding (all trials) and stopping early for benefit (3 trials) or futility (3 trials).
There were two trial types: "go" and "stop," randomly intermixed.
The effect of the number of bees, food source quantities, trial limit, and stopping condition on the cost design are studied and presented with statistical results.
"It's not necessarily the same thing as enrolling the trial and stopping in the middle".
White noise at 48 dB was played continuously for 1.9 s during each trial, starting at the beginning of each trial and stopping 2 s before the end.
Experimental blocks contained Go trials with stop-signal probability >0% (non-green cues) and Stop trials (non-green cues).
(A ) Timeline of a go (left) and stop trial (right) in the reactive experiment.
