negative hemianopia
   see hemianopia.

Dictionary of Hallucinations. . 2010.

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  • hemianopia —    Also known as hemianopsia. Both terms come from the Greek words hèmi (half), an (not), and opsis (seeing). They translate loosely as blindness in one half of the visual field . Phe nomenologically, various types of hemianopia can be… …   Dictionary of Hallucinations

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  • blindness and hallucinations —    Visual hallucinations occurring in individuals with impaired vision have been reported since ancient times. Perhaps the best known historical example is the description of Charles Lullin s * visual hallucinations, as rendered by his grandson… …   Dictionary of Hallucinations

  • migraine aura —    The term migraine comes from the Old English megrim, which is in turn indebted to the Greek noun hèmikranion (meaning half the skull). The introduction of the term hèmikranion is attributed to the classical physician Galen of Pergamum, born as …   Dictionary of Hallucinations

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