auditory secondary task

[David McFarlane]

Antonello,

Sounds like you want to run some kind of a "dual 
task" experiment.  We had a thread about this 
toward the end of last year, please take a look 
at 
http://groups.google.com/group/e-prime/browse_thread/thread/360a5c54d63ae241 
.  You might also try a search using "dual task", 
and the Dual Task example downloadable from the PST web site.

-- David McFarlane, Professional Faultfinder


>Yes, I'm very new! Thanks for all your suggestions! My difficult was
>to beep in a random mode while the text was present!
>I will try to follow your suggestions!
>Best regards
>Antonello Puglia
>
>(PhD student in Cognitive Psychology, University of Chieti-Pescara,
>Italy)
>
>On 20 Apr, 14:12, Michiel Spape <Michiel.Sp... at nottingham.ac.uk>
>wrote:
> > Hi Antonello,
> > How new are you to E-Prime? If the answer is 
> "very new", I will predict you'll have quite 
> some difficulty getting this to work - indeed, 
> how you seem to suggest you would like to do 
> this suggests this may well be the case. That 
> is, E-Prime slightly forces you to do things in 
> a time-locked (to use an ERP term) manner: read 
> single word, detect response to task1, detect 
> respond to task 2, is quite easy, but 'go on 
> reading while detecting single responses 
> continuously'... not so much. That said, if 
> you'd have a single slide with, say, a page of 
> text and a sound stimulus on it, you can 
> collect multiple responses (in advanced 
> properties of responses/timing tab). Then, 
> you'd have to code stuff so that the response 
> times of these responses are all recorded.
> > It occurs to me, however, you might be able 
> to do it in a less complex way (even if it will look a bit ugly):
> > Make a list for your trials (say TrialList). 
> Code at least ALL text you want your subject to 
> read (might well be a page? Use \n for new 
> lines) as an attribute (say myStory) such that 
> each trial has something else to read. Let the 
> procedure within that TrialList refer to 
> another list (say SubTrialList) with at least 
> one attribute, say mySoundfile. Record both 
> empty and non-empty soundfiles (for timing 
> purposes), say "empty.wav" and "beep.wav" and 
> fill your SubTrialList with these two. Now, if 
> you want a single trial to have, say, 20 beeps 
> and 80 silences, each of 1 second long (or 10 
> ms beep and 990 ms silence), just have 
> [mySoundfile] refer to 20 beeps and 80 
> silences. For each SubTrialList level, use the 
> same procedure, with, in it, at least one (or 
> two, if you want to record whether subjects 
> press a button BEFORE the onset of the 
> stimulus) slide. The slide then has text 
> [myStory] and sound [mySoundfile]. As said, 
> it's probably best to have another, but similar 
> slide before this slide, such that you can 
> collect responses that precede the sound 
> (anticipatory responses). This has, as a 
> benefit, that you can thereby randomise the 
> duration of the intervals between beeps.
> >
> > Oh, and try to be a bit more specific in your 
> question: where did you get stuck? Unless you 
> prefer someone actually to make your experiment 
> - might be a bit more expensive though.
> > Best,
> > Mich
> >
> > Michiel Spapé
> > Research Fellow
> > Perception & Action group
> > University of Nottingham
> > School of Psychology
> >
> >
> >
> > -----Original Message-----
> > From: e-prime at googlegroups.com 
> [mailto:e-prime at googlegroups.com] On Behalf Of Antonello
> > Sent: 20 April 2010 08:39
> > To: E-Prime
> > Subject: auditory secondary task
> >
> > Hi, I'm new in using E-prime. I want to create that:
> >
> > While the participants read a narrative text, they are involved in
> > detecting pure tone (presented in a random time manner) in a secondary
> > task. How can I do that? I am interested in record either reaction
> > times about the secondary task either in record reading duration time.
> >
> > Thanks in advance
> >
> > Antonello

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