Presenting a trial after a specific number of randomized trials

Jerry Shen jerryshen1993 at gmail.com
Tue Jul 22 18:20:47 UTC 2014


I'm currently working on an experiment where I have 478 random trials and 
then 2 extremely different trials (we'll call Trial A and B). Ideally, I 
would like for the 478 trials to be presented at random and Trial A to be 
presented after 250 random trials and then Trial B to be presented after 
350 random trials. My inline script looks like:

g_nTotalTrial = g_nTotalTrial+1
c.SetAttrib "TrialCount", g_nTotalTrial

If "TrialCount" = "2" Then c.SetAttrib "RightCue", "Shape.bmp"

Trial A and B is supposed to show a different image as the right cue 
(Shape.bmp and Color.bmp respectively). Although I don't get any errors 
running the experiment, Trial A and B are not presented at Trial 250 and 
350. 
**Note that this was just a trial run where I used the trial counter as 2 
and only have Trial A.

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