Table 3.
Brain regions showing greater functional connectivity to right amygdala during decrease-gross compared to look-gross trials (PPI) that differed by group (TD versus ASD), covarying for age.
| Brain Region | X | Y | Z | Size | F(1,28) | p |
|---|---|---|---|---|---|---|
| TD>ASD | ||||||
| Right posterior vlPFC | 44 | 16 | 8 | 540 | 15.51 | 0.000495 |
| Right anterior vlPFC | 29 | 40 | 18 | 1008 | 11.53 | 0.002066 |
| ASD>TD | ||||||
| Right posterior OFC | 22 | 28 | −12 | 635 | 10.18 | 0.003489 |
| Right anterior OFC | 20 | 64 | 9 | 1053 | 15.76 | 0.000456 |
| Left anterior OFC | −40 | 52 | 0 | 1949 | 16.63 | 0.000341 |
| Left posterior OFC | −28 | 28 | −16 | 1111 | 13.54 | 0.000985 |
| Left premotor cortex | −31 | −8 | 60 | 553 | 12.62 | 0.001374 |
Results obtained by PPI analyses assessed at a statistical threshold of p < .05 with a cluster threshold of 20 contiguous functional voxels. Cluster size is reported in structural voxels. Abbreviations: orbitofrontal cortex (OFC); ventrolateral prefrontal cortex (vlPFC).