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Differential Associations of Socioeconomic Status With Global Brain Volumes and White Matter Lesions in African American and White Adults: the HANDLS SCAN Study
Objective: The aim of the study was to examine interactive relations of race and socioeconomic status (SES) to magnetic resonance imaging (MRI)–assessed global brain outcomes with previously demonstrated prognostic significance for stroke, dementia, and mortality. Methods: Participants were 147 African Americans (AAs) and whites (ages 33–71 years; 43% AA; 56% female; 26% below poverty) in the Healthy Aging in Neighborhoods of Diversity across the Life Span SCAN substudy. Cranial MRI was conducted using a 3.0 T unit. White matter (WM) lesion volumes and total brain, gray matter, and WM volumes were computed. An SES com...
Source: Psychosomatic Medicine - April 1, 2017 Category: Psychiatry & Psychology Tags: Original Articles Source Type: research

Studying the neural bases of prism adaptation using fMRI: A technical and design challenge.
Abstract Prism adaptation induces rapid recalibration of visuomotor coordination. The neural mechanisms of prism adaptation have come under scrutiny since the observations that the technique can alleviate hemispatial neglect following stroke, and can alter spatial cognition in healthy controls. Relative to non-imaging behavioral studies, fMRI investigations of prism adaptation face several challenges arising from the confined physical environment of the scanner and the supine position of the participants. Any researcher who wishes to administer prism adaptation in an fMRI environment must adjust their procedures e...
Source: Behavior Research Methods - December 29, 2016 Category: Psychiatry & Psychology Authors: Bultitude JH, Farnè A, Salemme R, Ibarrola D, Urquizar C, O'Shea J, Luauté J Tags: Behav Res Methods Source Type: research