Journal of the neurological sciences
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Although a number of studies reported different interictal findings between migraine with aura (MA) and migraine without aura (MO), the pathophysiology of the visual aura in migraine remains unclear. ⋯ The high amplitude of the SSVEPs suggests that interictally migraine patients have abnormal excitability in the primary visual cortex, and this change in excitability may exist, at least partially, in the visual association cortex in MA.
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Review Historical Article
The pioneers of clinical neurology in South America.
The field of neurology in South America (SA) began to emerge towards the end of the nineteenth century, following the origin of the specialty in Europe. There was a consistent and long-standing admiration for European training, which led to the birth of the discipline in South America. The first steps took place almost simultaneously with European countries in Argentina, Brazil, Uruguay, Chile and Peru. ⋯ The first institute of neurology in Latin America, the Instituto Neurológico de Montevideo, was founded in 1926 under Américo Ricaldoni's direction. Seventeen years later, the Arquivos de Neuropsiquiatria from San Pablo was created, and is still in existence. Up until the present, South America has made dozens of important research contributions, the most important in the diagnosis and treatment of regional endemic diseases.