A new stimulus for isolating optokinetic eye movement from smooth pursuit
Schraa-Tam C, van der Lugt A, Smits M, Frens M, van Broekhoven P, van der Geest J
The traditional small-field optokinetic stimulation with an optokinetic drum or a striped tape would elicit regular eye movement pattern without apparent self-motion. However, this kind of stimulation activates both the pursuit and the optokinetic system for eye movement. We hypothesize that the use of limited lifetime dots moving coherently in one direction would only elicit optokinetic eye movement without the involvement of smooth pursuit eye movement. Our study has, therefore, revealed evidence that the use of moving limited lifetime dots as stimulus elicits only optokinetic eye movements without the involvement of smooth pursuit eye movements.