fortification of vauban

fortification of vauban
   Also known as fortification figure, fortification spectrum, flittering scotoma, geometrical spectrum, herringbone, Norman arch, scintillating scotoma, telehopsia, and teichopsia. The introduction of the eponym fortification of Vauban stems from the British neurologist Sir William Richard Gowers (1845-1915). Gowers introduced the term in honour of the French engineer Sébastien le Prestre Vauban (1633-1707), who was the first to describe the zigzag type of fortification wall as the most effective structure for the defence of fortresses. Today the term fortification of Vauban is used to denote a * geometric visual hallucination consisting of an extremely bright, sometimes coloured, zigzag line, or 'fortification wall', that may begin near the fovea in one hemifield, and then spread out towards the periphery of the same hemifield without touching the vertical meridian. For a further description of this phenomenon, see the entry Fortification spectrum.
   References
   Gowers, W.R. (1895). Subjective visual sensations. Transactions of the Ophthalmological Society of the United Kingdom, 15, 1-38.
   Wilkinson, F. (2004). Auras and other hallucinations: Windows on the visual brain. Progress in Brain Research, 144, 305-320.

Dictionary of Hallucinations. . 2010.

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  • fortification spectrum —    Also known as fortification figure, fortification of Vauban, geometrical spectrum, herringbone, flittering scotoma, Norman arch, scintillating scotoma, telehopsia, and teichopsia. The introduction of the term fortification spectrum is commonly …   Dictionary of Hallucinations

  • fortification — [ fɔrtifikasjɔ̃ ] n. f. • 1360; lat. fortificatio, de fortis « fort » 1 ♦ Action de fortifier une place, de la munir d ouvrages défensifs. Travailler à la fortification d une position clé. 2 ♦ (XVe) Souvent plur. Ouvrage défensif, ou ensemble des …   Encyclopédie Universelle

  • VAUBAN — La carrière de Vauban correspond à l’apogée de la fortification bastionnée en France, dont les nombreuses guerres du règne de Louis XIV favorisent le développement. Vauban est né à Saint Léger de Foucheret (actuellement Saint Léger Vauban, Yonne) …   Encyclopédie Universelle

  • Fortification — Planche de Cyclopaedia sur les fortifications. La fortification (du latin fortificatio « action de fortifier ») est l art militaire de renforcer une position ou un lieu contre une attaque par des ouvrages de défense. Par extension, la… …   Wikipédia en Français

  • Vauban — Sébastien Le Prestre de Vauban « Vauban » redirige ici. Pour les autres significations, voir Vauban (homonymie). Sébastien Le Prestre de Vauban …   Wikipédia en Français

  • Vauban, Sébastien Le Prestre de — born May 15, 1633, Saint Léger de Foucherest, France died March 30, 1707, Paris French military engineer. After fighting with the forces of the Condé family (1651–53), he switched to the royalist side and joined the newly formed engineer corps,… …   Universalium

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  • fortification — /fawr teuh fi kay sheuhn/, n. 1. the act of fortifying or strengthening. 2. something that fortifies or protects. 3. the art or science of constructing defensive military works. 4. Often, fortifications. military works constructed for the purpose …   Universalium

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