<div dir="ltr">Thanks, this is helpful.<br><br>One question that I still can't seem to find the answer for, though, is: what does E-Prime log as OnsetTime for an object set with pre-release? Does it log when the object starts drawing, or when it actually displays?<br><br>On Wednesday, June 4, 2014 2:47:11 PM UTC-5, Paul Groot wrote:<blockquote class="gmail_quote" style="margin: 0;margin-left: 0.8ex;border-left: 1px #ccc solid;padding-left: 1ex;"><div dir="ltr">Hi Cecilia,<div><br></div><div>You may find one of David's post very informative:</div><div><br></div><div><a href="https://groups.google.com/d/msg/e-prime/OeiZ00V9SRc/Vt2QAt3uoOcJ" target="_blank" onmousedown="this.href='https://groups.google.com/d/msg/e-prime/OeiZ00V9SRc/Vt2QAt3uoOcJ';return true;" onclick="this.href='https://groups.google.com/d/msg/e-prime/OeiZ00V9SRc/Vt2QAt3uoOcJ';return true;">https://groups.google.com/d/<wbr>msg/e-prime/OeiZ00V9SRc/<wbr>Vt2QAt3uoOcJ</a><br>
</div><div><br></div><div><br></div><div>Also note that the prerelease time of an object is used to prepare the <b>following </b>object. (This is something that is often overlooked.) </div><div><br></div><div>Paul</div></div>
<div><br><br><div class="gmail_quote">On 4 June 2014 20:49, Cecilia Westbrook <span dir="ltr"><<a href="javascript:" target="_blank" gdf-obfuscated-mailto="YUcBCNX3pFoJ" onmousedown="this.href='javascript:';return true;" onclick="this.href='javascript:';return true;">ceci.we...@gmail.com</a>></span> wrote:<br>
<blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex"><div dir="ltr">Hi all,<div><br></div><div>I'm sure this is covered in another thread, but I was not able to find it with searches. I'm using E-Prime for an fMRI task with critical timing. I'm using prerelease for my stimuli, but I'm seeing some weirdness in my data logging files. For stims with 200ms prerelease, it seems like it is logging them as the onsettime + 200ms. Shouldn't it be -200ms?</div>
<div><br></div><div>I see this in two ways: 1) if I look at the onsettime and the offset time and subtract them to get a duration, it is 200ms SHORTER than it should be (seems like it should be 200ms LONGER). 2) If I log the offsettime of the stim immediately preceeding it, the onsettime is 200ms later (even though it should be displaying at the same time as the offset time of the previous stim, right? +/- a little bit of delay in offsettime - but not 200ms of delay, surely?).</div>
<div><br></div><div>What is going on? Does anybody have any advice? Is the most accurate thing to do to just use the offsettime of the preceeding stim?</div><div><br></div><div>Thanks,</div><div>Ceci</div></div><span><font color="#888888">
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