eyetrackers

[Sven Van Lommel]

I understand the user interface of the Eyelink II has substantially changed.
Anyone experience in connecting it to E-Prime, for instance to have E-Prime act
on gaze position ?

Thanks,
Sven.

Paul Gr wrote:

> hi ray,
>
> Using EPrime together with Eyelink is possible, but only with reduced
> functionality. The main problem is that it is not easy (or even impossible?)
> to call eyelink DLL-functions from an EPrime script without running into
> serious problems. For example, one compatibility issue is that some
> important functions try to render graphics on the display (such as during
> calibration calibrating), which is a problem since EPrime already switched
> to DirectX graphics mode.
>
> However, it is possible to create a one way communication link from the
> EPrime computer to the Eyelink acquisition PC by using a special cable
> between both printer ports. This cable makes it possible to simulate key
> presses on the acquisition PC by sending some codes to the printer port. We
> successfully ran some experiments this way. I still might have a copy of a
> document somewhere, which describes how to setup such a configuration. Note
> that calibration should be done with a separate utility before running the
> EPrime script. Also, the one-way communication link doesn’t provide a
> mechanism to return measurement information (at runtime) from the
> acquisition PC to the stimulus PC. So, it is not possible to use the gaze
> position in your eprime script.
>
> best,
> paul
>
> >From: Ray Vukcevich <rayv at darkwing.uoregon.edu>
> >Reply-To: rayv at uoregon.edu
> >To: eprime at mail.talkbank.org
> >Subject: eyetrackers
> >Date: Thu, 21 Apr 2005 11:18:18 -0700
> >
> >Can someone tell me or point me toward information on using the EyeLink-1
> >eye-tracker from SR Research with eprime?
> >
> >I have a student who wants to do this, but it's been a while since she's
> >used eprime.
> >
> >Thanks
> >
> >Ray Vukcevich
> >University of Oregon
> >
> >
> >
>
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