<div dir="ltr">Paul<div><br></div><div>Our pre-release was at 33 ms, but the issue was flipping was not enabled. That solved it, thank you!!</div><div><br></div><div>Additional issue: Has anyone has run into the issue with the flicker paradigm occasionally not registering a keystroke response and continuing with the loop (sometimes take multiple response to register and quit the loop) and if so, how did you fix it?</div><div><br></div><div>Joanna</div><div><br><br>On Tuesday, November 5, 2013 10:41:15 AM 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"><div><br></div>Are the pre-release times set to 'same as duration'?<div>And is flipping enabled' set to yes (in the display device properties)?</div><div><br></div><div>Paul</div><div><br></div></div>
<div><br><br><div class="gmail_quote">On 5 November 2013 00:13, Joanna Lewis <span dir="ltr"><<a href="javascript:" target="_blank" gdf-obfuscated-mailto="siInlK_ucI0J">joanna....@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">Hello everyone!<div><br></div><div>I'm running a flicker paradigm in e-prime that utilizes millisecond timing for the alternating displays. One is a screen of black dots on a white background (one disappears every other flicker), the other display is gray scale full screen noise mask. <u>When the two flicker, there is a horizontal line that appears near the top of the screen</u>. We have tried to account for the screen updating cycles, but I can't seem to figure out why the issue persists. Here are more specifications.</div>
<div><br></div><div>LED monitor</div><div>Refresh rate: 60 hz</div><div>Display 1: 250 ms</div><blockquote style="margin:0 0 0 40px;border:none;padding:0px"><div>onset sync: vertical blank Offset: None</div></blockquote><div>
Display 2: 83 ms</div><blockquote style="margin:0px 0px 0px 40px;border:none;padding:0px">onset sync: vertical blank Offset: None</blockquote><div> </div><div>Displays lengths were chosen based on 1000/60=16.667, and 16.667*5 =83.35 and 16.667*15=250</div>
<div><br></div><div>I'm at a dead end and am asking you if there is something I can do or it's not possible at this speed of presentation. Thank you for any ideas </div><span><font color="#888888"><div>
<br></div><div>Joanna</div></font></span></div><span><font color="#888888">
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