Eprime output with eye tracking help

[grighi]

Hi

sorry,maybe i was not clear.

The experiment is programmed in Eprime and i am using the extension
for Tobii in order to record eye movements.
Given the structure of the experiment, it actually made a lot more
sense to program it in eprime.
The save gaze data file, which is somewhat analogous to a tobii studio
output is the one that contains the puzzling coordinates.

thanks
giulia


On Jun 16, 7:19 am, Ashtyster <ashtys... at gmail.com> wrote:
> Well, I've never used E-Prime's output to look at the eye data. So I
> have no idea what it looks like.
>
> But why do you need to look at E-Prime output anyway, if you use Tobii
> Studio (which allows you not only to get eye coordinates, but also
> analyze eye data)?
>
> -Ashtyster
>
> On 16 Jun, 00:06, grighi <gri... at gmail.com> wrote:
>
>
>
> > Thank you for the replies.
>
> > Unfortunately the information is very scarce and the format of the
> > coordinates differs between experiments run using Tobii Studio (the
> > eye tracking proprietary software) and Eprime with the extensions.
> > While the tobii studio ones are expressed in pixels values, the eprime
> > ones are express like 0.5557 and so on.
>
> > thanks
> > giulia
>
> > On Jun 15, 3:24 pm, Ashtyster <ashtys... at gmail.com> wrote:
>
> > > Hi Giulia,
>
> > > I've worked with eye-tracking for quite a bit of time. A gaze data
> > > file should contain X and Y values (in pixel locations) for both the
> > > pupil and corneal reflection.
> > > You can check the documentation that came with eye-tracking software
> > > for further reference. It's eye-tracking software that creates the dat
> > > file with gaze info, not E-Prime.
>
> > > Good luck!
>
> > > -Ashtyster
>
> > > On Jun 15, 8:16 pm, grighi <gri... at gmail.com> wrote:
>
> > > > Hi all
>
> > > > i was wondering if anybody could tell me how the eye coordinates are
> > > > reported in the gazedata file.
> > > > Mostly i am not sure what the reference is. Are they expressed in
> > > > pixel locations (although they do no look to be to me)?
>
> > > > The reason why i would like to know this is to be able to run some
> > > > post hoc analysis on specific portions of the stimuli in the screen
>
> > > > thanks
> > > > giulia– Skjul sitert tekst –
>
> > – Vis sitert tekst –

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