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. 2015 Nov 27;9:325. doi: 10.3389/fnbeh.2015.00325

Figure 4.

Figure 4

Preferences for ambiguity and conflict. (A) Random-effects group analysis showing areas that are correlated with ambiguity attitudes (A, top) and conflict attitudes (A, bottom). First (exploratory analysis), we analyzed data from one group only to identify candidate ROIs (A, left). For each such region we created a mask with a center at a region's peak and a radius 10 voxels. Second (confirmatory analysis), we sampled a time course from the second group of participants in each ROI, averaged it across all voxels, and fit it with the main model (A, right). Scatterplots represent relation between participants' general linear model (GLM) coefficients of main effects of ambiguity and conflict in each ROI and participants' ambiguity and conflict attitudes. Only ROIs in which confirmatory analyses yielded the same results as exploratory analyses are reported in the figure. Activation under ambiguity correlated with ambiguity aversion in medial prefrontal cortex (MPFC); activation under conflict correlated with conflict aversion in the ventral striatum. (B) Scatter plots depict the results of the test for specificity of neural signatures of behavioral measures. Participants' coefficients of main effects of conflict did not correlate with participants' conflict aversion in MPFC (B, left); participants' coefficients of main effects of ambiguity did not correlate with participants' ambiguity aversion in the ventral striatum (B, right). The functional maps are superimposed on a mean normalized anatomical image. L, left; R, right.