Table 1.
Areas of significant activation within the prefrontal cortex, striatum and midbrain, when comparing Type A and Type B attachment groups. All regions-of-interest P≤0.0001; voxel threshold=4, except as noted. Talairach coordinates (x, y, z) represent centre-of-gravity mean values for each region-of-interest.
| Region-of-Interest / Cluster (Brodmann Area, BA) | Right Hemisphere |
Left Hemisphere |
||
|---|---|---|---|---|
| x, y, z | Mean t-score | x, y, z | Mean t-score | |
| A. Own > Unknown (all affect groups combined): Secure > Insecure/Dismissing | ||||
| Prefrontal cortex | ||||
| Middle frontal gyrus (BA 10) | 44, 46, 18 | 3.42 | - | - |
| Medial frontal gyrus (BA 10) | - | - | -7, 58, 10 | 3.45 |
| Superior frontal gyrus (BA 10) | - | - | -32, 51, 25 | 3.62 |
| Insula / Frontal operculum (BA 13) | - | - | -40, 17, 11 | 3.71 |
| Hypothalamus / pituitary region | - | - | -3, 2 -16 | 4.04 |
| Insecure/Dismissing > Secure | ||||
| Dorsolateral prefrontal cortex | ||||
| Precentral gyrus (BA 6) | 44, -16, 25 | 3.67 | -24, -16, 50 | 3.35 |
| Precentral gyrus (BA 9) | - | - | -31, 5, 34 | 3.41 |
| Superior frontal gyrus (BA 9) | 39, 34, 30 | 4.23 | - | - |
| Inferior frontal gyrus (BA 9) | 36, 10 22 | 3.54 | - | - |
| Middle frontal gyrus (BA 8/6) | 24, 21, 35 | 3.58 | -24, 6, 44 | 3.67 |
| Middle frontal gyrus (BA 46) | - | - | -41, 29, 21 | 3.75 |
| Medial prefrontal cortex | ||||
| Superior frontal gyrus (BA 8) | 13, 36, 44 | 3.42 | - | - |
| Anterior Insula (BA 13) | - | - | -31, -3, 21 | 3.57 |
| B. Own-Happy Faces: Secure > Insecure/Dismissing | ||||
| Medial prefrontal cortex | ||||
| Medial frontal gyrus (BA 10) | 7, 64, 8 | 3.97* | -6, 60, 9 | 3.54 |
| Sub-gyral white matter | - | - | -22, 36, 24 | 3.52 |
| Orbitofrontal cortex | ||||
| Inferior frontal gyrus (BA 46/45) | 48, 40, 5 | 3.66 | -54, 17, 8 | 3.65* |
| Superior frontal gyrus (BA 10) | - | - | -20, 55, 5 | 3.73 |
| Striatum | ||||
| Ventral striatum / nucleus accumbens (BA 25) | - | - | -2, 10, -4 | 3.39* |
| Insecure/Dismissing > Secure | ||||
| Dorsolateral prefrontal cortex | ||||
| Middle frontal gyrus (BA 46) | 44, 30, 17 | 3.78 | -41, 37, 14 | 3.86 |
| Middle frontal gyrus (BA 9) | 28, 24, 34 | 3.82 | -40, 21, 27 | 3.57* |
| Middle frontal gyrus (BA 9) | 36, 32, 31 | 3.98 | - | - |
| Superior frontal gyrus | 21, 18, 50 | 3.54 | - | - |
| Subcallosal gyrus | 1, 13, -15 | 3.64 | - | - |
| C. Own-Sad Faces: Secure > Insecure/Dismissing | ||||
| Lateral prefrontal cortex | ||||
| Inferior frontal gyrus | - | - | -38, 41, -2 | 3.54 |
| Superior frontal gyrus (BA 9) | - | - | -26, 40, 32 | 3.74 |
| Striatum | ||||
| Ventral striatum / Nucleus accumbens | 12, 10, -3 | 3.47 | - | - |
| Insecure/Dismissing > Secure | ||||
| Dorsolateral prefrontal cortex | ||||
| Precentral gyrus (BA 44) | - | - | -53, 4, 13 | 3.65 |
| Middle frontal gyrus (BA 9) | 35, 31, 34 | 3.77 | - | - |
| Middle frontal gyrus (BA 8) | 23, 20, 42 | 3.49 | - | - |
| Medial frontal gyrus (BA 6) | 18, 6, 49 | 3.79 | - | - |
| Inferior frontal gyrus (BA 44) | 47, 12, 11 | 3.59 | - | - |
| Anterior insula | ||||
| Anterior Insula (BA 13) | 37, 19, 18 | 3.57 | -34, 27, 16 | 3.54 |
| Anterior Insula (BA 13) | 38, 17, -1 | 3.66 | - | - |
| Anterior Insula (BA 13) | 27, 18, -7 | 3.59 | - | - |
| Medial frontal lobe | ||||
| Superior frontal gyrus (BA 9) | 10, 47, 30 | 3.48 | - | - |
| Medial frontal gyrus – posterior (BA 6) | 14, -13, 55 | 3.40 | - | - |
| Uncus / Enterorhinal cortex (BA 28) | 15, -9, -24 | 3.62 | - | - |
| Anterior cingulate cortex (BA 32) | 14, 30, 7 | 3.68 | - | - |
| Medial frontal gyrus / Gyrus rectus (BA 25) | 3, 10, -15 | 3.61 | - | - |
*
Only seen at a threshold of 3 voxels.