AbstractA task requires a visual fixation point incompatible with that for S's mirror image of his own face. Time on target, recorded as optokinetic nystagmus, is proposed as a distraction index.Get full access to this articleView all access options for this article.Get accessReferences1. Gallup G. G. Jr. Mirror image stimulation. Psychol. Bull., 1968, 70, 782–793.