JX conceived of the study, provided instruction on the experiment, and drafted the manuscript.
The participants received general instructions of the experiment, followed by more detailed instructions for the specific task.
Then, all participants completed the Edinburgh Handedness Inventory [ 44], Hoen and Yahr stage [ 42], and were reminded of the specific task instructions of the fMRI experiment.
All subjects were given detailed instructions for the experiments.
Before presenting the premises (in the reasoning condition) or the pairs of elements (in the memory condition) to be remembered, a short instruction appeared, and also before the answering part of the experiment a short instruction was presented, each instruction lasted 5 s.
At the beginning of the session each participant received a large yellow envelope that contained all the necessary material, including answer sheets and individual instructions for each stage of the experiment.
Participants received a written copy of the instructions during the experiment.
This web-based system was integrated into the regular English instruction of an experiment class of Grade three in a junior middle school, i.e. it was used in one school hour almost every week for an entire school term.
The participants read short instructions indicating that the goal of the experiment was to test how people perceive emotions within facial expressions and that some images would be computer generated while others would be photographs of human faces.
Then, participants were requested to read a short instruction manual, which explained the procedures of the experiment, and played two trials of the wheel-of-fortune game outside the scanner in order to make sure that they had understood the task.
