Article Figures & Data
Figures
- Figure 1.
Reverse correlation analysis in the DMPFC (A), the lateral fusiform (B), the medial fusiform (C), and the intraparietal sulcus (D). The top right plot for each region demonstrates the volume-wise t-statistic for a one-sample t test across subjects used to calculate significant positive (peaks in red) and negative (troughs in blue) responses. Motion picture frames extracted from the 10 highest peaks and troughs (p < 0.05, FDR corrected) for each region are presented in rank order. All coordinates are in Montreal Neurological Institute stereotaxic space.
- Figure 2.
Ratings of response profile videos containing the 10 highest-ranking peaks along the dimensions of social complexity (A), facial expressions (B), scene complexity (C), and action complexity (D). Response profile videos were rated by an independent set of participants (N = 132) along dimensions related to the putative category preference of each region.
- Figure 3.
Results of a whole-brain reverse correlation analysis for regions in which a distribution of category preference deviated significantly from the distribution of scene types in the movie (χ2 > 28.94, p < 0.05 corrected). Areas with peaks dominated by social scenes are represented in bright yellow (100% social interactions). Regions with peaks dominated by single person scenes (A) and by person absent scenes (B) are represented in light blue.
Tables
- Table 1.
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).
- Table 2.
The four most distinctive verbs used to describe the content of response, profile videos along with the number of unique verbs for each profile video description
Brain region E Four most distinctive verbs Verbs 1 2 3 4 Dorsal MPFC 109 Talking (56) Smiling (31) Laughing (24) Interacting (21) Lateral fusiform 108 Twitching (88) Staring (14) Eating (41) Watching (13) Medial fusiform 120 Driving (63) Walking (27) Moving (26) Playing (13) Intraparietal sulcus 110 Smoking (75) Eating (51) Cleaning (23) Washing (17) Verb distinctiveness was calculated by taking the frequency for which each verb was reported for a particular region and adjusting that value for the overall frequency for which that verb was used across the entire corpus of verbs. Word frequency is shown in parentheses.
