Logging response times after stimulus presentation

Sound Experiment christina.tzeng at gmail.com
Fri Jul 5 16:00:05 UTC 2013


Thanks, David. That worked like a charm.

On Wednesday, July 3, 2013 12:15:12 PM UTC-4, McFarlane, David wrote:
>
> Christina, 
>
> I would try the following: 
>
> Make a Slide with both the image and the sound.  Set Duration to 
> "(infinite)", and End Sound Action on the SlideSound sub-object to 
> "Terminate".  This will run the Slide until the end of the sound.  Do 
> not use an input mask here. 
>
> Follow this with a Wait object to collect the response, using 
> appropriate Duration, input mask etc.  Your image will remain on the 
> display while the Wait object runs & collects the response.  (I think 
> of Wait objects as "null" stimuli and use them primarily when I want 
> to get a response without presenting a stimulus.) 
>
> That should do it. 
>
> ----- 
> David McFarlane 
> E-Prime training 
> online:  http://psychology.msu.edu/Workshops_Courses/eprime.aspx 
> Twitter:  @EPrimeMaster (https://twitter.com/EPrimeMaster) 
>
> /---- 
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>
> At 7/2/2013 09:45 AM Tuesday, Sound Experiment wrote: 
> >Thanks, Patrick. I would prefer if the images remained on the 
> >computer screen while the sound is playing. Is there a way for me to 
> >have both the sound playing and have the images up but prevent 
> >participants from being able to make a response until after the sound 
> finishes? 
> > 
> > 
> > 
> >On Monday, July 1, 2013 10:38:58 PM UTC-4, Patrick wrote: 
> >A simple option is to not start the response collection until after 
> >the sound file finishes playing. 
> >Alternatively, include the duration of the sound file in each trial 
> >and then subtract. 
> >You'll also want to consider how to deal with subjects pressing a 
> >button before the sound file ends. 
> > 
> >On Thursday, June 27, 2013 7:33:41 AM UTC+12, Sound Experiment wrote: 
> >Hello, 
> > 
> >For each experimental trial, I am presenting a sound file and 
> >pictorial images simultaneously. Participants will be making a 
> >button box response upon hearing the sound file (while the images 
> >remain on the screen). I would like participants' response times to 
> >begin logging after the sound file ends. Is there anything I should 
> >do in my script to ensure this? The sound files vary in length. 
> > 
> >Thank you, 
> >Christina 
>
>

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