Region of interest analysis for Experiment 1
| Session/region/effect | MNI coordinates | Number of voxels | Z value | p value | ||
|---|---|---|---|---|---|---|
| x | y | z | ||||
| Conditioning | ||||||
| Amygdala | ||||||
| Activation only | 58 | 65 | 28 | 95 | 2.91 | 0.002 |
| Activation + SCR | 33 | 65 | 29 | 32 | 2.12 | 0.017 |
| Activation + REM | 57 | 66 | 27 | 29 | −2.41 | 0.008 |
| Activation + %REM | 58 | 65 | 28 | 12 | −1.91 | 0.028 |
| Hippocampus | ||||||
| Activation only | 61 | 47 | 27 | 433 | −3.48 | <0.001 |
| Activation + REM | 26 | 55 | 25 | 55 | −2.39 | 0.008 |
| Activation + %REM | 26 | 55 | 25 | 15 | −2.58 | 0.005 |
| vmPFC | ||||||
| Activation only | 45 | 81 | 28 | 721 | −3.59 | <0.001 |
| Activation + REM | 40 | 81 | 28 | 42 | −2.29 | 0.011 |
| Activation + %REM | 45 | 89 | 25 | 167 | −2.98 | 0.001 |
| Extinction | ||||||
| Amygdala | ||||||
| Activation only | 61 | 62 | 21 | — | 2.18 | 0.015 |
| vmPFC | ||||||
| Activation only | 54 | 76 | 29 | 2 | 2.65 | 0.004 |
| Recall (CSE+ > CS−) | ||||||
| Hippocampus | ||||||
| Activation only | 35 | 41 | 36 | — | −2.25 | 0.012 |
| vmPFC | ||||||
| Activation only | 52 | 84 | 28 | 2 | 2.65 | 0.004 |
| Generalization (CSU+ > CS−) | ||||||
| Hippocampus | ||||||
| Activation only | 62 | 58 | 25 | 3 | −2.43 | 0.008 |
| vmPFC | ||||||
| Activation only | 51 | 84 | 27 | — | 2.02 | 0.022 |
The table shows results for the GLM analysis in Experiment 1, for each session, ROI, and contrast. Reported above are the MNI coordinates, z values, and uncorrected p values for the peak voxel within the cluster, as well as the size of cluster. Corrected p values are noted in the text. The number of voxels is calculated based on a cluster-forming threshold of activation of z = 2.3. In cases where peak activation did not reach this threshold, the number of voxels is not indicated.