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Hi,
i have a problem with a flicker task, in which 6 pictures are arranged in a circle and presented for 250 ms, then a blank screen, and then 6 pictures (only 1 is changed). this flicker goes on until response or maximum 10 times. The problem is, that sometimes, 1 or 2 pictures just disappear from the screen after a few flickers. In raw data are registered all the pictures until the end, without showing that 1 or 2 are missing at some point.
i can`t find why this is happening
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