Journal
NEUROSCIENCE AND BIOBEHAVIORAL REVIEWS
Volume 26, Issue 3, Pages 353-359Publisher
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/S0149-7634(02)00006-4
Keywords
human immunodeficiency virus; magnetic resonance imaging; neuropsychology; cognition; highly active antiretroviral therapy
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Infection of the central nervous system with human immunodeficiency virus type-1 (HIV) is associated with cognitive impairments that range from mild cognitive and motor difficulties to dementia. Structural neuroimaging abnormalities are also common in HIV-infected patients both with and without cognitive disturbances. The most common abnormalities include high signal intensities in the white matter and atrophy. Research over the past 12 years has helped define the relationship between these neuroimaging abnormalities and the manifestation of cognitive disturbance in HIV. In the present paper, we provide a synopsis of these studies and report the current state of the literature. Our review revealed that atrophy of the caudate nucleus is most consistently associated with cognitive impairment in HIV. The current literature does not support a strong relationship between cortical atrophy or white matter abnormalities and cognitive dysfunction in this population, though methodological issues may have influenced the results. Suggestions for study design and new research directions are provided. (C) 2002 Elsevier Science Ltd. All rights reserved.
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