Hi.  I have a simple problem.  I am trying to present
a stimulus for a brief period of time but the code I'm
using is not controlling that period.  I have an on
MouseDown script in frame 1 that directs the playback
head to frame 2, where I select the color of the
stimulus.  The stimulus ends up being presented
briefly but not for the amount of time I specified.

Here's my Frame 2 script:

on beginSprite me
  startTimer
  pickColor
end

on pickColor
  chroma = random (3)
  case (chroma) of
    1: sprite(1).color = rgb(0,0, 255)
    2: sprite(1).color = rgb(0,255,0)
    3: sprite(1).color = rgb(255,0,0)
  end case
  
  updateStage

  if the timer < 60 then
    go to the frame
  else
    go to frame 1
  end if    
end  


According to the debugger no stimulus is presented
until the  pickColor handler is finished and the
program goes to the end command in the beginSprite
handler.   And the program never goes back to frame 1.
 This is frustrating.
Paul Schulman




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