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Table 2: Correlation coefficient signs between R₂ values and neuropsychological test scores for the 12 subjects with memory complaints
Region Hemisphere MMSE CVLT IFR CVLT SDFR CVLT LDFR
Gray matter 
    Globus pallidus L + + − −
R + − − −
    Putamen L − − − −
R − − − −
    Caudate nucleus L − − − −
R − − − −
    Frontal cortex L + − − −
R − − − +
    Temporal cortex L + − − −
R − − − −
    Hippocampus L + + + −
R − − − −
    Thalamus L − − − −
R − − − −
    Red nucleus L − − − −
R − − − −
    Substantia nigra L − − − −
R − − − −
White matter 
    Corpus callosum L + + + +
R + + + −
    Subcortical frontal white L + + + +
R + + + +
    Internal capsule L − + − −
R − − − +
    Frontal white L + + + +
R + + + +
    Temporal white L + + + +
R − − − −
Note.— CVLT indicates California Verbal Learning Test; IFR, immediate free recall; LDFR, long delay free recall; MMSE, Mini Mental State Examination; SDFR, short delay free recall. Data are displayed as the revelant Spearman’s rank-order partial correlation coefficient sign (+, positive; −, negative) for each brain region and test score. Note the overall frequency of negative correlation coefficients for gray matter regions and positive correlation coefficients for white matter regions.