Face Recognition Task

[scarpais]

Hi liw,

Thank you so much for your quick response. I apologise for the late
reply.

In answer to your first comment, the teacher felt that given time
constraints, it would be impossible to program this design (dot
probe). I have little time in which to do this task! It is ostensibly
a simple design from my point of you also but I know little about E
Prime and I think that's what he was getting at.

In answer to the following:

Do I get this correctly: you first want to run a list of faces each
> shown once for a designated time and the subject does not need to do
> anything but view? Followed by a list of words and again the subject
> only needs to view? Then faces are shown again and this time the
> subject needs to indicate by a buttonpress whether or not this face
> has been shown before, followed by a word list and again subjecst need
> to indicate whether or not they recognise the words?
>

This is correct. Simple as you can see. Only again, the fact that I
know little about E Prime is making the task impossible. I have now
sat for hours trying to work out how to do this to no avail :(




On Jan 31, 1:44 pm, liwenna <liwe... at gmail.com> wrote:
> Hey Scarpais,
>
> Quite frankly I fail to see how a dot-probe is too problematic to
> design using e-prime. E-prime is absolutely able to 'do it'. So...
> could it be that your teacher actually tried to say that your set-up
> was too complex for that specific assignment? I.e. a too complex
> design for the given time?
>
> As for your new design: it seems about as complex as your intial
> design was? Is what you describe the course of a single trial or the
> complete test? I gather the latter? Then what would be the purpose of
> response times?
>
> Do I get this correctly: you first want to run a list of faces each
> shown once for a designated time and the subject does not need to do
> anything but view? Followed by a list of words and again the subject
> only needs to view? Then faces are shown again and this time the
> subject needs to indicate by a buttonpress whether or not this face
> has been shown before, followed by a word list and again subjecst need
> to indicate whether or not they recognise the words?
>
> Well you had a basic lesson of e-prime so you're familiair with lists
> and procedures. What you need are four lists on your testprocedure,
> one for each type of stimulus (faces no interaciton, words no
> interaction, words recognition and faces recognition) and a separate
> procedure for each proc. Each procedure would hold a slide  (or a text/
> imageobject) that shows the stimulus and has it's properties set to
> the needs of that list. And perhaps some fancy extra's like a
> trialinterval slide. It's really quite simple.
>
> Don't fear e-prime! Open your e-studio and simply start making the
> first part of the experiment: faces passive viewing. Once you got that
> you can add the words passive viewing and from there it's not hard to
> create the faces and words recognitions lists and procedures. Just
> take it step by step and I think you'll find that it's all far less
> difficult than you think now.
>
> Also: Michiel's book is a really nice guide, and I read that you have
> some other guides as well. Consult them when you're stuck but dont'
> fear to just start fiddling around in e-studio.
>
> Good luck!
>
> liw
>
> On 30 jan, 11:16, scarpais <scarp... at hotmail.co.uk> wrote:
>
>
>
> > Hi all,
>
> > As a newcomer to E Prime I have been told that my proposed experiment
> > is going to be too problematic to design using E Prime. My initial
> > idea was to design a dot-probe task to measure response times and
> > accuracy to the dot probe following paired presentations of a neutral
> > vs. an emotional face (happy/sad) and also for neutral vs. emotional
> > words.
>
> > I have went to some lengths however to get my stimuli and would like
> > to design something based around this. I was thinking perhaps a face
> > recognition task to investigate response times and accuracy once more.
> > This time, the faces would be presented in the first instance, a
> > mixture of both happy, sad and neutral but this time only one pic at a
> > time. Following this, I would like to present a some words
> > sequentially. Again these would be a mix of neutral and emotional
> > words.
>
> >  After this, I would like to present the target  faces once more and
> > also some face stimuli not included in the first part of the
> > experiment and ask participants to state whether this face appeared in
> > the first trial or not and then do the same again for the words.
> > Measuring both accuracy and response times.
>
> > This doesn't sound too complicated to me but as a relatively new
> > EPrimer I am clueless as to how to go about doing this. I have a
> > couple of starting up guides with examples and wondered if anyone had
> > an example/tutorial that would show me step by step how to do this
> > particular type of experiment? If not, if anyone had any suggestions
> > as to how I can do another experiment using this stimuli I'd be
> > extremely grateful.
>
> > I have been informed that my task is to design an experiment using E
> > Prime and that it does not matter if it is from an online example or
> > tutorial as long as it is not one of the ones from the E Prime
> > starting guide.
>
> > Thanks for reading this!- Hide quoted text -
>
> - Show quoted text -

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