Abstract: Cognitive function testing. At least some of example embodiments are methods including performing a cognitive function test on a patient without calibrating pupil position of the patient. The performing may include: causing a visual cue on a computer screen in front of the patient to move in a predetermined pattern; reading frames from an eye camera that captures images of an eye of the patient while the visual cue moves on the computer screen and the patient visually tracks the visual cue; determining pupil position within the frames; correcting offsets between the stimulus data and the pupil position data; translating the pupil position data from a coordinate space of the eye camera to a coordinate space of the stimulus data; and generating a test score being the cumulative distance between the stimulus data and pupil position data for each corresponding point in time.

Abstract: Cursor position control based on the vestibulo-ocular reflex. At least some of the illustrative embodiments are methods including: creating a first video stream, the first video stream depicting an eye of user of a computer system, wherein a pupil of the eye changes position relative to a face of the user during use of the computer system by the user; tracking pupil position relative to the face of the user, the tracking by way of the first video stream; moving a cursor position on the display device, the moving responsive to changes in pupil position relative to the face of the user, and the moving in real time with pupil position changes; and adjusting cursor position based on the vestibulo-ocular reflex.

Abstract: Cognitive function testing. At least some of example embodiments are methods including performing a cognitive function test on a patient without calibrating pupil position of the patient. The performing may include: causing a visual cue on a computer screen in front of the patient to move in a predetermined pattern; reading frames from an eye camera that captures images of an eye of the patient while the visual cue moves on the computer screen and the patient visually tracks the visual cue; determining pupil position within the frames; correcting offsets between the stimulus data and the pupil position data; translating the pupil position data from a coordinate space of the eye camera to a coordinate space of the stimulus data; and generating a test score being the cumulative distance between the stimulus data and pupil position data for each corresponding point in time.