Table I.
Activity in hypothesized regions of interest (threshold, P < 0.05, SVC) in response to fear (versus neutral) for conscious and nonconscious perception conditions
| Condition | Side | MNI coordinates (x, y, z) | Cluster sizea | t |
|---|---|---|---|---|
| Subliminal | ||||
| Amygdala | L | −16, 2, −16 | 12c | 2.71 |
| R | 16, 2, −16 | 6b | 2.64 | |
| Ventral medial prefrontal (BA10/32) extending to ventral anterior cingulate | R | 8, 58, −12 | 12 | 2.27 |
| Supraliminal | ||||
| Amygdala | L | −26, 2, −16 | 37 | 2.41 |
| Dorsal anterior cingulate (BA24/32), extending right | L | −8, 16, 26 | 177d | 3.16 |
| R | 8, 6, 28 | — | 3.36 | |
| Dorsal medial prefrontal (BA8), extending right | L | −10, 42, 46 | 809c | 3.55 |
| R | 8, 40, 42 | — | 4.00 | |
| Supraliminal > subliminal | ||||
| Amygdala | L | −26, −4, −24 | 78c | 3.19 |
| R | 30, −2, −26 | 48c | 3.23 | |
| Dorsal anterior cingulate (BA24) | L | −6, 18, 22 | 1,772d | 3.03 |
| Extending to dorsomedial prefrontal (BA8/9), and | L | −10, 40, 40 | — | 4.55 |
| Extending right | R | 12, 62, 28 | — | 2.08 |
| Subliminal > supraliminal | ||||
| Ventral anterior cingulate, extending to ventral medial prefrontal (BA32) | R | 2, 34, −4 | 38 | 2.15 |
a
The cluster with the largest number of voxels in each region is reported. Cluster size refers to the number of suprathreshold voxels contributing to the cluster (and each voxel was 2 mm3). Montreal Neurological Institute (MNI) coordinates (x, y, z, in mm) refer to the voxel of maximum signal change in each cluster. BA, Brodmann area. SVC, small volume corrected. Significant at the more stringent levels of
b
P < 0.01;
c
P < 0.005;
d
P < 0.0001.