Fig. 5: MFU organization is independent of eccentricity and face/body selectivity, and exhibits sharp boundaries.
From: Mesoscale functional organization of face and body areas in the macaque brain
A, B Correlation analyses demonstrating the independence of MFU organization from eccentricity and face/body selectivity. Test-retest reliability (lines) for distance matrices derived from eccentricities (yellow in A) and face/body selectivity indices (yellow in B), alongside reliability for full object response profiles (orange). Cross-correlation between distance measurements based on categorical responses and those based on eccentricity (blue bars in A) or face/body selectivity (blue bars in B) is shown. Data are presented for both monkeys. C, D Sharp transitions at MFU boundaries. Comparison of Euclidean distances between object response profiles of neighboring voxels along the borders of MFUs in subject 1 (M1, C) and subject 2 (M2, D). Distances were calculated for voxel pairs within the same MFU (adjacent voxels within the same MFU along the boundary) and across different MFUs (adjacent voxels across a boundary). Box plots (grey box in the center of the violin) show the interquartile range (IQR; 25th–75th percentiles), with a white dot indicating the median within each box. Whiskers extend to the most extreme data points within 1.5 × IQR of the box edges, or to the minimum/maximum values. For each subject, two-sided Wilcoxon rank-sum tests revealed significant differences: M1—ML (across/within pairs, n = 201/452, p = 9.9 \(\times\) 10−28); MSB (n = 147/362, p = 5.8 \(\times\) 10−28). M2—ML (n = 280/612, p = 1.3 \(\times\) 10−18); MSB (n = 123/253, p = 6.5 \(\times\) 10−8). All p-values are uncorrected. Source data are provided on GitLab (https://gitlab.com/lzgitlab/share/mfus_of_face_body).
