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Group: Forum Members
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Visits: 85
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I am having trouble selecting at random and presenting at random within trials.
For each trial, there is a target image presented at a specific point within a stream of filler images. Example:
1 = filler23
2 = filler17
3 = filler2
4 = target1
5 = filler6
6 = filler19
7 = filler5
8 = filler4
9 = filler20
10 = filler15
11 = filler8
The constraints are:
(1) The 10 filler images are randomly drawn from a pool of 24 images, cannot repeat within a trial, must be presented in a random order, and must be selected anew each trial.
(2) There are 5 target images and a different one (using random selection) must be presented every trial.
I think the second constraint is straightforward because it works like a regular trial but I cannot figure out how to tackle the first constraint. I have looked at other code in the Inquisit library such as the Simple Attentional Blink code and it seems to have a solution when using single letters but I cannot seem to translate that strategy to pictures. Any tips?
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