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3 An EyeLink Portable Duo Tutorial: Running an Experiment
The following tutorial will allow you to test the EyeLink Portable Duo system,
assuming that you have already arranged a proper layout of the eye tracker
equipment and configured Screen Settings for your setup (see Section 1.1
"Suggested Equipment Layout" and Section 5.4 "Customizing Screen Settings"
of the "EyeLink Portable Duo Installation Guide" document). A summary of the
setup procedure can be found at the end of the discussion ("3.13 EyeLink
Portable Duo Setup Summary"). This section leads you through a
straightforward participant setup and eye-tracking demonstration. For the
easiest setup, you should select a participant for the test that can sit still when
required, and does not wear eyeglasses. Once comfortable with these
participants, you can tackle more complex setup scenarios.
During the description of the tutorial session, we will take the opportunity to
discuss many important aspects of system use. These may make the setup
appear long, but a practiced experimenter can set up a participant in much less
than two to three minutes, including calibration and validation.
If the EyeLink Host Application is not yet running on the Host PC, start it by
clicking on the EyeLink logo at the top-left corner of the File Manager (see
section 2.2 "Starting the Host Application" of this document).
IMPORTANT: Remember to exit the EyeLink software by pressing the key
combination CTRL+ALT+Q and then clicking on the shutdown button on the
File Manager toolbar, or by clicking the "Exit" button from the Setup Screen,
and choose "Exit" in the following dialog box. Avoid switching off the computer
while the EyeLink Host software is still running, as data may be lost or get
corrupted.
The current chapter illustrates how to run through a typical eye tracker session
using the TRACK.EXE example from the Windows Display Software. If you
prefer to use other examples or operating systems, please see section 3.15 of
the current chapter. To start the TRACK example on a Windows Display PC,
click:
Start -> All Programs -> SR Research -> TRACK
When TRACK starts, a copyright message will appear on the Display PC, and a
network icon will be displayed on the upper right corner of the Host screen.
A dialog will appear on the Display PC asking you to enter a Track EDF file
name. Enter "TEST" (without the quotes " ").
Once TRACK is running, control is possible both from the Host PC and Display
PC keyboard, and the application will reflect the state of the EyeLink Host
An EyeLink Portable Duo Tutorial: Running an Experiment
39
© 2016-2017 SR Research Ltd.
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