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Presenting digital ouput at the same time with the stimulus

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  • Presenting digital ouput at the same time with the stimulus

    Hi there,
    I am trying to present digitals ouput at the same time with pictures that are in my stimulus lists -(+I also made a "500ms blank" show up between these pictures using feedback function)

    so it goes something like this.
    pictures(500ms)-blank(500ms)-picture(500ms)-blank(500ms) and so on....

    so I tried setting a digital ouput at the end of each blank(500ms) so, the picture and digital ouput can show up simultaneously. However it didn't work.

    The digital ouput shows up before the picture. Is there anyway I can solve this problem?

    Thanks in advance.

  • #2
    The digital output event needs to be presented before the picture within each trial.

    The easiest way to do so is to link the digital output event to the trial normally. If for some reason, this is not possible in your design, then present the digital output in a trial rule rather than a feedback action.

    If this doesn't help, please post your experiment file.

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