Head mounted camera and eye track system for animals

A head mounted eye track system for an animal, comprising:

• a mount configured to the shape of the head of the animal, a vision assembly configured to attach to the mounting, and data collection circuitry;
• wherein the vision assembly comprises an eye camera, a mirror arranged to be outside of a forward field of view of the animal while being angled to provide an image of an eye of the animal to the eye camera, and an illumination source that illuminates the animal's eye;
• wherein the data collection circuitry comprises a microcontroller receiving image data from the eye camera and configured to provide synchronization information regarding the image date from the eye camera;
• and
• a power supply for the vision assembly and the data collection circuitry, the power supply being configured to be worn by the animal, and
• wherein the mounting, vision assembly and data collection circuitry are untethered such that the animal can move freely.