Table I. Summary of the measured CBF and BOLD responses during LGN activation.
| Subject no. | CBF (P < 0.05) | BOLD (P < 0.05) | BOLD (P < 0.0005) | ||||||
|---|---|---|---|---|---|---|---|---|---|
| No. of voxels | % change | No. of voxels | % change | Overlap with CBF (no. of voxels) | No. of voxels | % change | Overlap with CBF (no. of voxels) | ||
| 1 | L | 2 | 62 | 6 | 0.66 | 2 | 4 | 0.54 | 1 |
| R | 2 | 48 | 7 | 0.52 | 1 | 3 | 0.80 | 1 | |
| 2 | L | 3 | 68 | 14 | 0.68 | 3 | 7 | 0.84 | 2 |
| R | 4 | 82 | 5 | 0.50 | 1 | 2 | 0.40 | 0 | |
| 3 | L | 3 | 100 | 9 | 0.49 | 2 | 3 | 0.62 | 0 |
| R | 2 | 89 | 4 | 0.90 | 1 | 3 | 0.70 | 0 | |
| 4 | L | 3 | 40 | 4 | 0.48 | 1 | 2 | 0.40 | 1 |
| R | 2 | 74 | 2 | 0.47 | 0 | 0 | n/a | 0 | |
| 5 | L | 2 | 400a | 5 | 0.86 | 1 | 3 | 0.99 | 0 |
| R | 3 | 59 | 3 | 0.97 | 0 | 3 | 0.97 | 0 | |
L, left LGN; R, right LGN.
a
This large percent CBF increase is discussed further in the text.