title: On the failure of completion of lines passing through the blind regions related to the optic disc, and to scotomas of migraine auras.
abstract: We compared the appearance of a line passing through the optic-disc blind spot with that of lines passing just medial or just lateral to the blind spot. Though there is no well-defined gap in the line, we see a consistent difference, which is hard to describe. On the other hand, during a migraine aura experienced by one of us, lines passing through scintillating scotomas showed clear sharply defined gaps.
authors.affiliation: Department of Neuro-ophthalmology, The National Hospital for Neurology and Neurosurgery, Queen Square, London WC1N 3BG, UK.
authors.forename: Mithu
authors.initials: M
authors.lastname: Storoni
authors.forename: David H
authors.initials: DH
authors.lastname: Hubel
mesh_terms: D006801:Humans; D020325:Migraine with Aura / Q000503:physiopathology*; D009898:Optic Disk / Q000503:physiopathology*; D010364:Pattern Recognition, Visual / Q000502:physiology*; D012607:Scotoma / Q000503:physiopathology*; D014796:Visual Perception / Q000502:physiology*