title: Optokinetic nystagmus in patients with defects of the central visual field.
abstract: Optokinetic nystagmus (OKN) was studied in patients with central visual field defects. Apart from a classic OKN, an inverted nystagmus was observed in some cases. A prerequisite for eliciting this paradoxic OKN was that the attention of the subject was directed to the field defect. Although other factors seem to be co-determining, a central mechanism is thought to process the visual information according to spatial-selective attention.
mesh_terms: D000328:Adult; D000368:Aged; D004585:Electrooculography; D005260:Female; D006801:Humans; D008297:Male; D008875:Middle Aged; D009760:Nystagmus, Physiologic; D014786:Vision Disorders / Q000503:physiopathology; D014794:Visual Fields