Table 2.
Load effects in regions of interest
| Brodmann area | Left |
Right |
||||||||
|---|---|---|---|---|---|---|---|---|---|---|
| Delta(2–4 Hz) | Theta(4–9 Hz) | Alpha(9–14 Hz) | Beta(14–28 Hz) | Gamma(28–128 Hz) | Delta(2–4 Hz) | Theta(4–9 Hz) | Alpha(9–14 Hz) | Beta(14–28 Hz) | Gamma(28–128 Hz) | |
| DLPFC | L+1F+1,2,3 | F− | L+1 | |||||||
| TC | F− | F− | F+2,3 | L + F− | F− | F+2 | ||||
| MTL | F− | F+1,2,3 | L+ | F− | ||||||
| Hippocampus | L+2F+2,3 | L+ | F+2,3 | |||||||
For every combination of frequency (columns), hemisphere (columns), and brain region (rows), significant effects are indicated with F (face) or L (letter). Significant increases of oscillatory power with memory load for faces are indicated with F+, and decreases with F−. For letters, the coding is L+ and L−. The superscript numbers in the gamma columns indicate the sub-bands of gamma as follows: 1, low (28–48 Hz); 2, medium (48–90 Hz); or 3, high (90–100 Hz). The regions of interest are the DLPFC, the TC, the MTL, and the hippocampus.