Figure 1.

Visual cortex exhibits increased frequency-specific neuronal interactions in blind indviduals. A, p value distribution of a permutation statistic assessing the number of altered power correlations between visual cortical areas (BA17 and BA18) and the rest of the brain across oscillation frequencies. Differences are analyzed separately for increased (red) and decreased (blue) correlations in blind compared with sighted individuals. p values are corrected for the split into positive and negative differences, and all frequencies analyzed. B, Cortical source locations that show increased delta (δ) correlations with the visual cortical areas. p values are corrected for the frequency selection based on the data shown in A and for testing at all cortical source locations. C, Same as B, but for increased gamma (γ) correlations.