In NIMH ML, TrialRecord is a class object, not a struct. It is not allowed to add new fields to it. If you need custom fields in TrialRecord to pass variables around, use
TrialRecord.User instead.
TrialRecord.var1 = 200; % fine in the original ML, but not in NIMH ML
TrialRecord.User.var1 = 200; % good with NIMH ML
Note that none of the fields you create under TrialRecord.User are automatically saved to the data file. You should use the
bhv_variable function to keep the records of them.
TrialRecord has a few other user-editable fields for task flow control and screen updates.
TrialRecord.Pause = true; % make the task pause after the current trial
TrialRecord.Quit = true; % make the task quit after the current trial
TrialRecord.DrawTimeLine = false; % stop updating the time line panel
TrialRecord.MarkSkippedFrames = true; % place eventcode 13 for every skipped frame
TrialRecord.DiscardSkippedFrames = false; % present skipped frames again
For the full description of TrialRecord, see
https://monkeylogic.nimh.nih.gov/docs_TrialRecordStructure.html.
