Reliability of the intersubject correlations for each region and the percentage of each scene category type present in the complete response profile vectors of peaks and troughs for each region
| Brain region | ISC | Social | Single | Person absent | Volumes |
|---|---|---|---|---|---|
| Peaks | |||||
| Dorsal MPFC (2, 54, 24) | 0.2 | 100% | 0% | 0% | 22 |
| Lateral fusiform (40, −50, −22) | 0.3 | 38.8% | 41.8% | 19.4% | 34 |
| Medial fusiform (28, −42, −16) | 0.5 | 12.1% | 21.7% | 66.2% | 49 |
| Intraparietal sulcus (−40, −42, 54) | 0.3 | 31% | 65.2% | 3.8% | 30 |
| Troughs | |||||
| Dorsal MPFC (2, 54, 24) | — | 5.7% | 35.8% | 58.5% | 18 |
| Lateral fusiform (40, −50, −22) | — | 20.8% | 22.5% | 56.6% | 37 |
| Medial fusiform (28, −42, −16) | — | 77.8% | 22.2% | 0% | 45 |
| Intraparietal sulcus (−40, −42, 54) | — | 37.2% | 22.6% | 40.2% | 35 |
Simulations comparing the mean intersubject correlation with a null distribution derived from phase-scrambled response time series demonstrated that the ISC was reliable for all four regions (all Z > 15.7, all p < 0.00001). All peak and trough response profiles deviated significantly from the distribution of scene types in the movie (all χ2 > 14, all p < 0.001). Pairwise χ2 tests of independence showed that each region's response profile in peaks and troughs was independent of that of the other regions (all χ2 > 6, all p < 0.04).