Page 39 - Like me, or else... - Michelle Achterberg

Social evaluation in childhood
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Whole brain condition effects in the combined test and
replication samples
A full factorial ANOVA was computed based on the combined test and replication groups (N=55). All significant pairwise comparisons are displayed in Table 3. The contrast negative>neutral and positive>neutral feedback resulted in heightened activation in the lateral occipital cortex. The contrast negative>positive feedback resulted in significant heightened activation in the right and left orbitofrontal cortex, the medial prefrontal cortex, the paracingulate gyrus, the left insula and the left superior temporal cortex (see Figure 3a, Table 3). Figure 3b presents a visual representation of mPFC activation after positive and negative social feedback for the combined test and replication group, as well as for the test and replication sample separately. The reversed contrast, positive>negative feedback did not resulted in any significant clusters.
Figure 3. a) whole brain results of the contrast negative vs. positive feedback in the test and replication samples combined (N=55, p<.005, FDR cluster corrected). b) Mean parameter estimates for negative > positive feedback activation in the medial PFC cluster in the test and replication samples combined (N=55, as displayed in Figure 3A), as well as for the samples separately (center of mass (x,y,z): -1, 55, 31). Note that this graph is purely for visual representation and is not used for statistical inferences. Error bars indicate standard error of mean.
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