Abstract
Unilateral visual neglect (UVN) is the inability of patients, with damage to their left or right cerebral hemisphere, to respond to stimuli presented on the side opposite the lesion. We present a preliminary study on using a HMD-based-eye-tracking system for the assessment of UVN. Normal subjects and patients with UVN were shown two virtual environment (VE) scenes. The subjects were required to identify and count the objects in scene 1, and to identify a clock and tell the time in scene 2. Eye movements of these subjects were recorded during the task. There were differences in the amount of visual field scanned by the subjects and patients. The normal subjects scanned the entire scene and identified all the objects. Patients with left UVN did not scan the left side of the scene and did not report objects on that side. Patients with right UVN scanned only the left side of the scene and did not report objects on the right side of the scene. This study demonstrates the feasibility of using the HMD-based eye-tracking system in a virtual environment for characterizing UVN.
Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
