A system and a method for testing a condition of a subject's nervous system using virtual reality technology are described. The method includes displaying a visual stimulus to the subject in a virtual reality environment. Eye and body movements of the subject are tracked as the subject focuses on the visual stimulus. The body movements may include head movements. Based on the eye and body movements, the condition of the subject's nervous system is evaluated and then results of the evaluation describing the subject's nervous system condition is reported to a user, such as a clinician, for further analysis thereof.