User manual

destroy your .SCD file, a copy should be safely stored on the CDs you

received with your EyeLink 1000.

4) The height of the Display PC monitor should be set so that when the

participant is seated and looking straight ahead, they are looking

vertically at the middle to top 75% of the monitor. Ideally the Desktop

Mount should be about 60 cm from the subject’s eyes (this will translate

into an eye-screen distance of about 70 cm, with the Desktop Mount

placed right in front of the Display PC monitor with no extra space

between them). The Camera Screw of the Desktop Mount should be

aligned with the horizontal center of the monitor. For maximum eye

tracking range, the Mount should be raised so that the top of the

illuminator is parallel with, and as close as possible to, the lower edge of

the visible part of the monitor without blocking the subject’s view of the

screen. To keep the viewing distance relatively constant throughout a

recording session, a comfortable, stable chair for the subject is

recommended.

5) Start the Host PC application and go to the “Set Options” screen. If your

system is licensed for remote eye tracking, you should now see Desktop

Remote or Arm Remote as one of the ELCL configuration options. Select

your mount type and then go to the Camera Setup screen.

6) Ensure the lens cap has been removed from the camera by pulling it

outwards while holding the camera. A camera image should now be

displayed on the global view of Camera Setup screen on the Host PC. Ask

the subject to be seated. Adjust the height of the chair so that the

subject is comfortable and his/her line of sight is to the upper half of the

monitor. Adjust your mount position so that the image of the eye appears

in the center of the global view of the camera image.

Figure 3-8: Camera Setup Screen with the EyeLink Remote

56 An EyeLink 1000 Tutorial: Running an Experiment