Eye tracking headset and system for neuropsychological testing including the detection of brain damage

摘要

A universal headset-mounted Neuropsychological Testing System utilizes eye tracking, with a single screen fixed with respect to the face and a dot on the screen driven to present an object that both eyes are focused on using a set of prisms, with the prisms eliminating interocular distance considerations. Ultrathin optics cast a virtual image at 40 centimeters and a universal mask against which the test taker's face is placed fixes the single screen with respect to the face so that head movement is not a factor. Additionally, miniature cameras are located in the headset housing beneath the eyes, and a quick release tensioning unit provides easy headset mounting and removal. Moreover, all elements are located in the headset hood to eliminate the effects of head movement as well as environmental distractions.

主权项

1. In a neuropsychological testing system involving smooth pursuit eye tracking, an apparatus for measuring gaze direction without calibration while eliminating environmental effects, the apparatus comprising:
a headset adapted to fit over a face of a test subject and to be mounted on a head of said test subject, the headset including a screen positioned at a predetermined distance from the eyes of said test subject when the headset is mounted on the head of said test subject, wherein the headset further includes a pair of prisms positioned between the eyes of said test subject and said screen such that the prisms direct light emitted from a spot on the screen to the eyes of the test subject.