Determining the visual angle of objects in the visual field: an extended application of eye trackers.
Many eye-tracker systems display the point of central gaze fixation on video images of the viewed environment. We describe here a method for determining the visual angles of objects located in the periphery. Such data are needed to study the potential contributions of peripheral vision during cognitive and motor tasks.
Scovil
Carol Y
CY
Centre for Studies in Aging, Sunnybrook Health Sciences Centre, Toronto, ON M4N 3M5, Canada.
King
Emily C
EC
Maki Ast
Brian E
BE
D000465:Algorithms; D005133:Eye Movements / Q000502:physiology*; D006801:Humans; D007091:Image Processing, Computer-Assisted / Q000379:methods*; D008962:Models, Theoretical; D014741:Video Recording; D058609:Visual Field Tests / Q000379:methods*; D014794:Visual Fields / Q000502:physiology*