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- W4285493017 abstract "Mapping structural spatial change (i.e., gradients) in the striatum is essential for understanding the function of the basal ganglia in both health and disease. We developed a method to identify and quantify gradients of microstructure in the single human brain in vivo. We found spatial gradients in the putamen and caudate nucleus of the striatum that were robust across individuals, clinical conditions, and datasets. By exploiting multiparametric quantitative MRI, we found distinct, spatially dependent, aging-related alterations in water content and iron concentration. Furthermore, we found cortico-striatal microstructural covariation, showing relations between striatal structural gradients and cortical hierarchy. In Parkinson’s disease (PD) patients, we found abnormal gradients in the putamen, revealing changes in the posterior putamen that explain patients’ dopaminergic loss and motor dysfunction. Our work provides a noninvasive approach for studying the spatially varying, structure-function relationship in the striatum in vivo, in normal aging and PD." @default.
- W4285493017 created "2022-07-15" @default.
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- W4285493017 date "2022-07-15" @default.
- W4285493017 modified "2023-10-03" @default.
- W4285493017 title "Mapping microstructural gradients of the human striatum in normal aging and Parkinson’s disease" @default.
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- W4285493017 doi "https://doi.org/10.1126/sciadv.abm1971" @default.
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