A portable eye-movement and gaze monitoring system. Displays and records the subject's point-of-gaze with respect to the scene.

PERFORMANCE

• Horizontal and vertical eye movements and pupil-size are measured 120 times per second.
• Resolution of +/-0.1°.
• Horizontal tracking range of +/-40°, vertical tracking range of +/-30°.
• Robust performance and freedom from artifacts.
• Insensitivity to relative movements between the eye-tracker and the head.
• Lightweight eye-tracker and scene-camera assembly fits easily and comfortably on subject (weight approx. 300 grams).
• Field-of-view for the scene-camera ranges from 22° to 90°.

EASE OF USE

• Continuous display of the subject's eye and on-screen instructions support rapid set-up procedures.
• Adaptive procedures optimize system performance for each subject.
• Fully automated and semi-automated calibration procedures.
• Calibrations are easily achieved and maintained.
• Single hand-held keyboard controls all eye-tracking, display and recording functions.
• Single monitor supports all eye-tracking and display functions.
• System parameters are adjusted through multiple on-screen menus.

DATA RECORDING TO DVD

• Records video from scene camera with super-imposed eye-position markers.
• Fuses eye-position data with measurements of pupil-size, timeline information, event markers, and data from six digital channels.

FUNCTIONS SUPPORTED BY VISPORT

• VISPORT is a software product that uses the serial port of a PC (IBM compatible) to communicate with the portable eye tracker.
• Data recording to hard disk.
• Strip-chart display of eye-movements data on the computer screen.
• Upgrades of software in the portable eye-tracker.
• Display of calibration data.
• Control of all system set-up parameters (hardware configuration, calibration modes, post-processing.)