Just so I'm clear--so are you calling the same DirectRT input file 128 times? If so, I assume then you are getting a single data file (e.g., 54.csv for subject 54) that has the data only from from the 128th execution of that file? i.e., it has a single line of data in it with the last RT (as opposed to 128 lines with the same RT). Yes? If so, then I'm afraid I don't see an easy solution here. Generally DirectRT sessions are not intended to be used for single trials in a sort of 'bounce back and forth from MediaLab' sort of way. Although you can do it, we haven't come up with a convenient way to accommodate the data organization from DirectRT when using this kind of experimental structure.
Long story short is that in such a case, you can not repeatedly call the same input file from MediaLab for the same subject--it will be overwritten. This means you would need to make copies of the DirectRT input file and assign them different names (e.g., trial1.csv, trial2.csv, ad nauseum..). If you use and underscore before the unique part (e.g., trial_1.csv), you can at least get them all in the same data sub-folder (e.g., see 'an alternate method' in the data output overview of the users guide).




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