Fig. 4: Reliability analysis at the single subject level.

A For each of the 10 subjects, we generated gradient profiles and inter-/intra-areal dissimilarity. Associations between individual inter-areal dissimilarity and histological gradient, as well as cross-task diversity were examined using Spearman’s correlation coefficients. B Associations between individual inter-areal dissimilarity were estimated using two-sided Pearson’s correlation. Distributions of rho values between inter-areal dissimilarity and histological gradient (mean ± SD of rho values = −0.58 ± 0.047; sample sizes n = 10, with 10 biological replicates), and with cross-task diversity were examined (mean ± SD of rho values = −0.53 ± 0.067; sample sizes n = 10, with 10 biological replicates). Box plots display the mean (center line = 50% of the group), interquartile range (box bounds = 25th to 75th percentiles), and whiskers extending to the minimum and maximum values within 1.5× the interquartile range (IQR). C Associations between individual intra-areal dissimilarity were estimated using two-sided Pearson’s correlation. Distributions of rho values between inter-areal dissimilarity and histological gradient (mean ± SD of rho values = −0.19 ± 0.051; n = 10, with 10 biological replicates), and with cross-task diversity were examined (mean ± SD of rho values = −0.21 ± 0.069; n = 10, with 10 biological replicates). Box plots display the mean (center line = 50% of the group), interquartile range (box bounds = 25th to 75th percentiles), and whiskers extending to the minimum and maximum values within 1.5× the IQR. Abbreviation: MP2RAGE magnetization-prepared 2 rapid gradient echo. Source data are provided as a Source Data file.