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Thread: leave the stimuli on the screen after pressing the response pad

  1. #1
    Join Date
    Oct 2006
    Posts
    12

    leave the stimuli on the screen after pressing the response pad

    hi
    i have design a stroop task (color naming task) which will work in fmri environment so i would like to keep the name on the screen for a while after the subject pressing the matching color on the response pad
    how can i do that
    thanks
    maya

  2. #2
    Join Date
    Nov 2005
    Posts
    3,318
    See the section on using the "full" keyword function in the users guide, or online here (look for Fixed Response Window/Stimulus Duration with an RT):

    http://www.empirisoft.com/directrt/h..._rt_limits.htm

  3. #3
    Join Date
    Oct 2006
    Posts
    12
    hi
    i did add the keyword full but it didnt work -and i want that the word will stay even after the subject press the right color on the response pad
    i have attached the file so you will see what i did
    thanks
    maya
    Attached Files Attached Files

  4. #4
    Join Date
    Oct 2006
    Posts
    12

    files

    here are the files
    thanks
    maya
    Maya--try deleting the extra column you have after the final rt column (col R)--I think that is throwing off the reading of your input file.
    Attached Files Attached Files
    Last edited by jarvis24; 03-24-2008 at 04:37 PM.

  5. #5
    Join Date
    Mar 2008
    Posts
    3
    I encounted the same problem as maya. Even if I specified full like "rt:any,full" and set the upper time limit in style as 2000ms, the stimulus still went away as soon as I pressed any key.

    But just then after reading the other thread, I finally realize that I should set the upper limit of 2000s in the MinMax column in the style file, not in the option. I can't believe the MinMax column just skipped my eyes!

    Anyway it's definitely helpful to read LOTS of threads!
    Last edited by meridaisa; 03-15-2008 at 10:15 PM.

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