Systems and methods for performing a Horizontal Gaze Nystagmus (HGN) test. An HGN test device having a harness configured to be worn by a subject, a moveable stimulus controlled by a computing device, and a recording device for recording the eyes of the subject during the administration of the HGN test. More specifically, the HGN device has a movable armature or an arm with a stimulus there attached which follows a track. The recording may be stored in the computing device or transmitted to a remote system for storage.
