The SpaceX Dragon capsule performed a practice lap around the orbiting laboratory and checked out its communication and navigation systems.
The unstaffed SpaceX Dragon capsule performed a practice lap around the orbiting laboratory and checked out its communication and navigation systems.
Next, participants performed a practice stop signal block consisting of 16 trials, where they were presented with go and no-go trials.
Hence participants performed a practice block with the reversed assignment before the second half of the session.
Participants first performed a practice block (in Experiment 1, 32 trials; in Experiment 2, 40 trials; in Experiment 3, 30 trials) – the practice contained a subset of stimuli that were not used in the experiment itself.
Participants then performed a practice session on a PC with 6 blocks of trials with 12 trials in each block and 72 trials in total, using the same timing parameters as the actual test.
In order to clear any doubts about the general procedure, participants performed a practice run composed of six study trials followed by 12 test trials using the dummy words from the stimulus recording.
All participants performed a practice block, consisting of a different set of 3 stimuli, which were each presented repeatedly until a correct response was given.
Following written informed consent, practitioners completed baseline questionnaire assessments, and study staff performed a practice environmental scan (to document existing practice systems, policies and patient materials related to tobacco use).
Prior to the start of the experiment, participants performed a practice session comprising 20 go trials, which used a staircase procedure to identify the shortest time within which they could respond.
