[Cognitive functions in multiple sclerosis. Bibliographic review (1980-1991)]

The presence of intellectual impairment in MS has been known since the first studies of Charcot and Vulpain who described the memory's weakening appearing in these patients. However, the interest for the MS' cognitive deficits has specially increased in the decade of the 80's. In this article, a bibliographical revision of the last published studies about the cognitive impairment in MS has been made paying attention to those superior functions known as more affected. The aim of this article is to known the correlation among the cognitive impairment and the MR images, level of disability, fatigue, duration and course of the disease and demographic factors.