Nonencumbering Visual Performance Measurements

Instrumentation has been developed to track and record dynamically an automobile driver's voluntary and involuntary eye motions with no encumbrance to the driver's head or eye. This portable eye-tracking system makes possible field studies of the driver's:

1. 1.
   angle of gaze referenced to the scene.
2. 2.
   involuntary eye motions as possible indications of physiological state (fatigue, intoxication, etc.).
3. 3.
   pupil response.