Enhancing horizontal gaze nystagmus test training through virtual human simulation

Abstract

ABSTRACT To maintain roadway safety, officers must be trained in the Standard Field Sobriety Test (SFST) which includes a Horizontal Gaze Nystagmus (HGN) component. HGN – a repetitive jerking movement in the eyes – is an effective impairment indicator, but can be subtle and difficult to observe, particularly for inexperienced officers. Therefore, hands-on HGN learning opportunities are important for SFST training. Current HGN training often focuses on wet labs with live participants or observational videos and lectures – both with limitations. This research shows that simulation training with a virtual human is a viable HGN training approach and provides hands-on experience in various situations. Study results from the Individual Nystagmus Simulation Training Experience (INSITE) system are presented with a summary of encouraging results in confidence gains, participant feedback and other areas, particularly for newer officers. A discussion of future potential for both INSITE and virtual human training techniques for law enforcement is included.