[DMDX] Re: randomised inter trial intervals At 05:02 PM 4/22/2004 +0100, you wrote: >Hi, > >I asked a question a while ago about randomising the ISI, thanks very much  >for the suggestion of using the "set c1=" expression (below) >+1  /  <%ctr 1> / ; > >I have since been having problems with the clock on command, it is no  >longer recognised..... I have tried including it in <*> rather than just *  >alone, also tried using     Clockons in frames with no duration is probably not a good idea. >I have included a sample from my item file below, any suggestions would be  >really appreciated....... > >n54  s54   t5000 > >+250  < ! %60 "+"/ %0 x370 "read" / ! %30 x225 "write" / %0 x370 * "_____"  >/ ! x225  " "> /  <%ctr 1> / ; > >I would also like the last frame before the random delay to remain on  >screen until the participant responds, so is it possible to include the  >"set c1=" at the beginning of an item with a blank frame following it?    Yep.                                                 /"\\   -jonathan (j.c.f.)                            \\ /                                                  X      ASCII RIBBON CAMPAIGN - AGAINST HTML MAIL  / \\    Where profit is, loss is hidden nearby.                                                - Japanese proverb