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masked priming

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  • masked priming

    Hello, is it possible to use Superlab to design a classical masked priming experiment, e.g. 500ms - mask; 50ms - prime; 50ms - blank space; 150ms - mask; 500ms - target as a single event??? Thank you.

  • #2
    Yes, it is possible.

    Please be aware that as your exposure times go down to double digits, e.g. 50 milliseconds, your screen's refresh rate starts to matter more and more. You can present a picture only in multiples of refresh cycles. For example, if your monitor has a refresh rate of 60Hz (i.e 60 times a second), then each cycle's duration is 1000 milliseconds divided by 60, which comes to 16.66 milliseconds. So you can present pictures for 16.66, 33.33, and luckily enough for you , 49.98 milliseconds. But you cannot do 20, 30, or 40 milliseconds.


    • #3
      Im also using a masked prime task, in particular a response inhibition (RI) task, which is interrupted at various points by 2 different prospective memory tasks. One of which interrupts the participants RI task, the other is self-initiated by the participant.
      Building the response inhibition task on Psyscope was doable, however trying to include a user initiated button press which would stop the current block of RI, initiate a prospective memory task, and upon completion restart the RI task is proving to be very difficult.
      I was hoping you may have some idea on how to do this.
      Any help you could give would be greatly appreciated!


      • #4
        Unfortunately, this is not a capability of SuperLab.