A light-weight, low-cost optokinetic drum.
Optokinetic nystagmus (OKN), a periodic sawtooth movement of the eyes, is maximally elicited when a subject's entire visual field is moving. The most appropriate stimulus for the generation of OKN is an optokinetic drum that completely surrounds the subject. Such drums tend to be massive and can only be accelerated rapidly with a powerful motor. This report describes construction details of a drum designed especially to minimize moment of inertia and cost as well.
D006801:Humans; D009760:Nystagmus, Physiologic; D010775:Photic Stimulation / Q000295:instrumentation*