Dual Task (One is experimenter-paced, the other is participant-paced)

[Khu]

Hi, I'm trying to program a dual task in which participants are presented with a series of pictures that appear for 3 seconds each. At the same time, they are completing a secondary letter detection task in which they hear different letters of the alphabet and must enter a corresponding key. I want this secondary task to be participant-paced meaning that the next letter is presented after they enter a response. Also, I want the program to exit as soon as 10 pictures appear whether or not the letter detection task is done.  I've downloaded the dual task example on pstnet support but it does not appear to work the way I want it to. Specifically, the pictures change every time I enter a response for the secondary task rather than after every 3 seconds. I guess the difference between my experiment and the example is that both of the tasks in the example are experimenter-paced whereas in my experiment, one is experimenter-paced and one is participant-paced. Any help would be greatly appreciated! Thanks!  Khuyen

[Alphonse Stickle]

to a beginning, perraps to adjust properties page for presentation of picture object, regarding duration (= 3000), and allowable reponse (= none). Perraps also to read (perform) tutorials and user guide, and the e-primer of Michiel Spape.

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