Figure 2.
Change in theta and gamma power across anatomical location. For two representative time epochs, 0–1000 ms (early word presentation) and 500–1500 ms (late word presentation), all spherical regions that exhibited a significant (p < 0.001) change in theta (A) and gamma (B) power with successful memory encoding (SME) are displayed on a standardized three-dimensional brain. Increases (R > N) and decreases (N < R) in power are shown in red and blue, respectively. N, Not recalled; R, recalled. The color scale reflects the percentage of nearby ROIs exhibiting identical encoding-related effects. The horizontal dashed line on the sagittal views corresponds to the level of the axial cut in the third panel (the z = −13.0 plane in Talairach space). Grayscale rendering represents the percentage of spherical voxels surrounding a given location with at least five patients. L, Left; R, right.