Results of the regression analysis for performance in the four neuropsychological tests.

Abbreviations: nMBV = normalized mammillary body volume; nTV = normalized thalamic volume; BPF = brain parenchymal fraction; CI = confidence interval.缩写说明：nMBV 即标准化乳头体体积（normalized mammillary body volume）；nTV 即标准化丘脑体积（normalized thalamic volume）；BPF 即脑实质分数（brain parenchymal fraction）；CI 即置信区间（confidence interval）。