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Voxels with higher population spatial frequency tuning (pSFT) peaks have narrower tuning. A: bandwidth decreases with increase in pSFT peak. Each point illustrates a voxel. Data from every single subject has been displayed with a certain color. B: distributions of the correlation coefficients between the peak and the bandwidth estimates of the pSFT, across subjects. The coefficients are significantly negative in all 3 regions of V1, V2, and V3 (*P < 0.05; **P < 0.001).
