Figure 4.

Single Presentation of a Disgusting Stimulus Is Sufficient to Make Accurate Predictions of Individual’s Political Orientation

(A) Hemodynamic response to the first disgusting stimulus for the liberal and conservative groups, extracted from the red-to-yellow voxels in Figure 3A. Shaded regions indicate ±1 SE. Time-series data were linearly interpolated every 1 s for display purposes. “AUC” indicates the mean AUC of ROC curves over 1,000 iterations.

(B) A representative ROC curve.

(C) Hemodynamic response to the first disgusting stimulus, extracted from each predictive region, as well as the mean AUCs of the corresponding ROC curves. The x axis is time since stimulus presentation (s) and the y axis is the percent signal change (percentage). Black inverse triangles indicate the stimulus onset, the bottom of which is at 0.05% signal change. DLPFC, dorsolateral prefrontal cortex; pre-SMA, presupplementary motor area; BG, basal ganglia; AMYG/HIPP, amygdala/hippocampus; MTG/STG, middle/superior temporal gyrus; FFG, fusiform gyrus; and PAG, periaqueductal gray.

See also Figure S4.