Table 2.
Talairach coordinates and activated volumes for the spatial attention task
| Area | x | y | z | Volume (mm3) | N | % Overlap with topographic cortex |
||
|---|---|---|---|---|---|---|---|---|
| p < 0.01 | p < 0.001 | p < 0.0001 | ||||||
| Frontal areas | ||||||||
| FEF | ||||||||
| L | −38 (1.7) | −9 (1.9) | +49 (1.4) | 1734 (324) | 9 | 52 (9.3) | 50 (9.5) | 48 (8.1) |
| R | +36 (1.3) | −6 (1.8) | +50 (1.6) | 2858 (321) | 9 | 54 (8.0) | 52 (7.9) | 51 (5.4) |
| PreCC/IFS | ||||||||
| L | −41 (1.4) | +2 (1.3) | +31 (1.0) | 1282 (400) | 8 | 53 (5.1) | 54 (6.3) | 56 (11.1) |
| R | +41 (2.0) | +4 (1.2) | +30 (0.8) | 1990 (331) | 8 | 50 (3.7) | 50 (7.0) | 53 (7.1) |
| SEF | +0 (0.5) | +4 (2.5) | +53 (1.6) | 1468 (240) | 9 | |||
| PPC areas | ||||||||
| PPC | ||||||||
| L | −22 (0.9) | −67 (2.7) | +44 (2.3) | 7011 (1559) | 8 | 56 (3.6) | 57 (4.8) | 57 (4.2) |
| R | +19 (0.9) | −68 (2.5) | +44 (2.1) | 7028 (1214) | 8 | 57 (4.1) | 58 (6.7) | 57 (5.9) |
Values are means (±SEM) of peak coordinates in millimeters. N, Number of subjects showing significant clusters of activation; % Overlap with topographic cortex, Out of the total number of voxels responding to the spatial attention task, the percentage that was topographically organized. p values refer to the threshold of activation for the spatial attention task (main analysis: p < 0.001; control analyses: p < 0.01, p < 0.0001). L, Left; R, right.