InstantForum 2017-1 FinalMillisecond Forumshttps://forums.millisecond.com/Millisecond ForumsMon, 21 Sep 2026 23:31:15 GMT20https://forums.millisecond.com/Topic14832.aspxHi,<br/><br/>I would like some instruction sentences to constantly appear at the bottom edges of the screen during the whole duration of the task.<br/>I have been using the bg attribute as follows up to now:<br/><br/>&lt;block testblock&gt;<br/>/ preinstructions = (test)<br/>/ trials = [1-80=noreplace(congruenttrial,incongruenttrial)]<br/>/ bgstim = (leftinstruct, rightinstruct)<br/>&lt;/block&gt;<br/><br/>&lt;text leftinstruct&gt;<br/>/ items = ("Z = UP")<br/>/ hposition = 15<br/>/ vposition = 95<br/>/ fontstyle = ("Verdana", 2.00%, true)<br/>&lt;/text&gt;<br/><br/>&lt;text rightinstruct&gt;<br/>/ items= ("M = DOWN")<br/>/ hposition = 85<br/>/ vposition = 95<br/>/ fontstyle = ("Verdana", 2.00%, true)<br/>&lt;/text&gt;<br/><br/>&lt;trial congruenttrial&gt;<br/>/ ontrialbegin = [if(script.currentblock=="practiceblock")<br/>{<br/>values.stimtype=counter.pcongruentstimtype.selectedvalue;<br/>values.cresp=counter.pcongruentcresp.selectedvalue;<br/>} <br/>else<br/>{<br/>values.stimtype=counter.congruentstimtype.selectedvalue;<br/>values.cresp=counter.congruentcresp.selectedvalue;<br/>}]<br/>/ posttrialpause = 500<br/>/ stimulustimes = [0=fixation, leftinstruct,rightinstruct;500=blank, leftinstruct,rightinstruct; 1050=stimulus, leftinstruct, rightinstruct]<br/>/ trialduration = 2600<br/>/ responsetime = 1050<br/>/ validresponse = (44,50)<br/>/ iscorrectresponse = [trial.congruenttrial.response==values.cresp]<br/>&lt;/trial&gt;<br/><br/>&lt;trial incongruenttrial&gt;<br/>/ ontrialbegin = [if(script.currentblock=="practiceblock")<br/>{<br/>values.stimtype=counter.pincongruentstimtype.selectedvalue;<br/>values.cresp=counter.pincongruentcresp.selectedvalue;<br/>} <br/>else<br/>{<br/>values.stimtype=counter.incongruentstimtype.selectedvalue;<br/>values.cresp=counter.incongruentcresp.selectedvalue;<br/>}]<br/>/ posttrialpause = 500<br/>/ stimulustimes = [0=fixation, leftinstruct,rightinstruct; 500=blank, leftinstruct,rightinstruct; 1050=stimulus, leftinstruct, rightinstruct]<br/>/ trialduration = 2600<br/>/ responsetime = 1050<br/>/ validresponse = (44,50)<br/>/ iscorrectresponse = [trial.incongruenttrial.response==values.cresp]<br/>&lt;/trial&gt;<br/><br/>The problem is that between each trial these instructions disappear and I would like them to remain on the screen all the time (I don't want them just flashing during the trials).<br/>When I put a bgattribute in the block element, the background stimuli only appear at the beginning of the block. That is why also put:<br/>&nbsp; &nbsp; &nbsp; &nbsp;/ stimulustimes = [0=fixation, leftinstruct,rightinstruct; 500=blank, leftinstruct,rightinstruct; 1050=stimulus, leftinstruct, rightinstruct]<br/><br/>Thank you for your help!Wed, 05 Nov 2014 12:37:58 GMTZooahhhttps://forums.millisecond.com/Topic14894.aspxThanks!Wed, 05 Nov 2014 12:37:58 GMTZooahhhttps://forums.millisecond.com/Topic14833.aspxAnything in /bgstim is drawn to the screen exactly once at the very beginning of the &lt;block&gt;. If any stimulus displayed by the &lt;trial&gt; elements in that &lt;block&gt; overwrites (part of) the background stims, they'll be gone. You need to make sure that doesn't happen by sizing and positioning the stimuli in your trial's accordingly.<br/><br/>If you alternatively want to display those persistent instructions via your your &lt;trial&gt;s, make sure to set their /erase attributes to false.<br/><br/><br/>Mon, 03 Nov 2014 09:22:53 GMTDave