see, here's the thing. i wrote that program, but it's been years since i've looked at it, and if i were asked today to provide an n-back program i'd probably make it from scratch...<div>that said, i believe that the "listFIRSTS" is a list of trials, applicable across all blocks (0-back, 1-back, etc), wherein targets are never presented. this was the work-around i came up with to avoid having a target trial randomly selected, say, in the second trial during the 3-back block. that wouldn't work because you'd not yet have encountered three stimuli from which to repeat the 3rd one back.</div>
<div>i'm not thrilled to hear that listFIRSTS was causing you problems with the 0-back, but at the same time i'm pretty sure (if memory serves) that listFIRSTS is necessary to prevent premature target trials across all conditions.</div>
<div><br></div><div>ben<br><br><div class="gmail_quote">
On Wed, Aug 25, 2010 at 7:09 PM, Matt Paffel <span dir="ltr"><<a href="mailto:mpaffel@gmail.com" target="_blank">mpaffel@gmail.com</a>></span> wrote:<br><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex">
welp, i've been modifying it into a 2-back & 0-back. I've found that<br>
the "listFIRSTS" procedure interferes with the data collection on the<br>
0-back procedure so I've taken it out and have had no problems with<br>
it. However, If I take it out of the 2-back procedure everything goes<br>
to er, heck. Am i right to think that it serves the purpose of setting<br>
up the Target and Nontarget array in the 2-back procedure even though<br>
the same inlines are present in the NonTarget procedure? I'm kind of<br>
trying to figure out a work around as I have to have the 2-back run<br>
two blocks of different images, one with words and the other with<br>
impossible objects, and I'd like to try to not overburden eprime with<br>
unnecessary objects and scripts.<br>
<div><br>
On Aug 25, 5:44 pm, ben robinson <<a href="mailto:baltimore....@gmail.com" target="_blank">baltimore....@gmail.com</a>> wrote:<br>
> maaaybe. why?<br>
><br>
</div><div>> On Wed, Aug 25, 2010 at 6:40 PM, Matt Paffel <<a href="mailto:mpaf...@gmail.com" target="_blank">mpaf...@gmail.com</a>> wrote:<br>
> > Hello Everyone,<br>
><br>
> > Just a quick question, has anyone ever used the nback task that can be<br>
> > downloaded from the STEP Psychology site?<br>
><br>
> > --<br>
> > You received this message because you are subscribed to the Google Groups<br>
> > "E-Prime" group.<br>
> > To post to this group, send email to <a href="mailto:e-prime@googlegroups.com" target="_blank">e-prime@googlegroups.com</a>.<br>
> > To unsubscribe from this group, send email to<br>
</div>> > <a href="mailto:e-prime%2Bunsubscribe@googlegroups.com" target="_blank">e-prime+unsubscribe@googlegroups.com</a><<a href="mailto:e-prime%252Bunsubscribe@googlegroups.com" target="_blank">e-prime%2Bunsubscribe@googlegroups.com</a>><br>
<div>> > .<br>
> > For more options, visit this group at<br>
> ><a href="http://groups.google.com/group/e-prime?hl=en" target="_blank">http://groups.google.com/group/e-prime?hl=en</a>.<br>
<br>
</div>--<br>
<div><div></div><div>You received this message because you are subscribed to the Google Groups "E-Prime" group.<br>
To post to this group, send email to <a href="mailto:e-prime@googlegroups.com" target="_blank">e-prime@googlegroups.com</a>.<br>
To unsubscribe from this group, send email to <a href="mailto:e-prime%2Bunsubscribe@googlegroups.com" target="_blank">e-prime+unsubscribe@googlegroups.com</a>.<br>
For more options, visit this group at <a href="http://groups.google.com/group/e-prime?hl=en" target="_blank">http://groups.google.com/group/e-prime?hl=en</a>.<br>
<br>
</div></div></blockquote></div><br>
</div>
<p></p>
-- <br />
You received this message because you are subscribed to the Google Groups "E-Prime" group.<br />
To post to this group, send email to e-prime@googlegroups.com.<br />
To unsubscribe from this group, send email to e-prime+unsubscribe@googlegroups.com.<br />
For more options, visit this group at http://groups.google.com/group/e-prime?hl=en.<br />