Table 4. Functional connectivity of the psychophysiological interaction analyses.
| Anatomical region | BA | Voxels | Side | MNI coordinates |
Z score | ||
|---|---|---|---|---|---|---|---|
| x | y | z | |||||
| Gelotophobics (hostile type > non-hostile type) | |||||||
| Seed: Caudate body (−8, 0, 12) Positive connection | |||||||
| dlPFC | 8 | 78 | L | −16 | 22 | 52 | 3.48 |
| Seed: Caudate body (−8, 0, 12) Negative connection | |||||||
| Insula | 13 | 45 | R | 30 | −6 | 28 | 3.84 |
| vmPFC | 10 | 19 | R | 4 | 54 | −4 | 2.93 |
| Non-gelotophobics (non-hostile type > hostile type) | |||||||
| Seed: Amygdala (−22, −10, −12) Positive connection | |||||||
| Insula | 13 | 17 | R | 42 | −26 | −4 | 3.44 |
| Seed: Midbrain (−12, −12, −8) Positive connection | |||||||
| Caudate body | — | 32 | R | 18 | 2 | 22 | 3.06 |
| Seed: vACC (10, 26, −6) Positive connection | |||||||
| Midbrain | — | 80 | L | −8 | −28 | −8 | 3.70 |
| OFC | 47 | 38 | L | −32 | 20 | −2 | 2.97 |
| Seed: NAcc (−4, 0, −4) Positive connection | |||||||
| Caudate | — | 10 | R | 10 | 10 | 8 | 2.96 |
| Hostile type (gelotophobics > non-gelotophobics) | |||||||
| Seed: dlPFC (−26, 10, 46) Positive connection | |||||||
| n.s. | |||||||
| Non-hostile type (non-gelotophobics > gelotophobics) | |||||||
| Seed: Midbrain (12, −26, −6) Positive connection | |||||||
| vACC | 23 | 24 | L | −6 | 22 | −4 | 3.94 |
| Seed: vmPFC (−6, 60, −2) Positive connection | |||||||
| vACC | 45 | 24 | R | 12 | 32 | 10 | 3.53 |
The activation threshold for the PPI analysis was set at p < 0.05 FWE (family-wise error rate) using predefined ROIs. dlPFC = dorsolateral prefrontal cortex; vmPFC = ventromedial PFC; OFC = orbitofrontal cortex; NAcc = Nucleus accumbens; n.s. = not significant; vACC = ventral anterior cingulate cortex.