Ocular Videography System

An ocular videography system for tracking eye movements of an animal comprising:

• a) a camera system suitable for being positioned on a head of an animal to track eye movements of at least one eye of the animal, said camera system comprising at least one image sensor as well as at least one decoder for decoding a signal detected by the image sensor, wherein the at least one decoder is physically separate from the at least one image sensor;
• b) a head mount on which the camera system is fixed or fixable, wherein the camera system is designed in such a way to detect movements of the eye and/or a movement of the head of the animal in a vertical direction, horizontal direction, torsional direction, or combinations thereof, relative to an optical axis of the camera system or the optical axis of the eye of the animal, or both, without interfering with natural motion dynamics of the animal;
• and
• c) a head position tracking system designed to track a position of the head of the animal within a predefined, stationary coordinate system originating outside of the body of the animal, wherein said head position tracking system comprises three tracking arms mounted on the head mount in a predefined position to each other, wherein each of the tracking arms comprises one or more tracking arm light emitting elements, and wherein the camera system comprises at least one camera system light emitting element for guiding and emitting light towards the eye of the animal, at least one light reflector for reflecting at least partially the light reflected from the eye of the animal to the image sensor of the camera system, wherein the camera system is mounted on the head mount outside of a visual field of the eye of the animal, and wherein the system is able to calculate a position of the head or eye of the animal within a stationary coordinate system according to position and/or movement of light received from the reflector and/or tracking arm light emitting elements.