Table 2.

Partial correlations between self-reported confidence, neural confidence signals in the brain’s reward system, neural observation–experience matching in the anterior insula, and interpersonal attraction after emotion observation

Postobservation attraction
Partial correlationsResidual partial correlations (general target effects removed)
Approach behaviorWillingness to meetExpected intimacy of communicationApproach behaviorWillingness to meetExpected intimacy of communication
MeasurerTrTrTrTrTrT
Experiment I (n = 40)
 Self-reported confidence0.45*(4.5)0.58*(5.4)0.61*(7.5)0.03(0.3)0.23*(1.7)0.24*(1.7)
Experiment II (n = 52)
 Self-reported confidence0.44*(4.5)0.45*(5.2)0.59*(6.9)0.17(1.6)0.19*(1.7)0.30*(2.8)
 Confidence signals in VS0.20*(2.2)0.06(0.1)0.12(1.3)0.21*(2.0)
 Confidence signals in mOFC0.26*(3.1)−0.03(−0.3)0.01(0.1)0.22*(2.8)
 NOE matching (cluster 1)0.10(1.2)0.02(0.2)0.04(0.4)
 NOE matching (cluster 2)0.11(1.2)0.00(0.0)−0.02(−0.2)
  • Variance that can be explained by the observer’s initial interpersonal attraction toward the targets is removed from both variables in all analyses. Residual correlations (i.e., correlations after general target effects are removed from both variables) are only reported for significant main correlations. r, back-transformed average partial correlation coefficients; T, t values at random-effects group level; VS, ventral striatum. Please see Fig. 3 for the location of the two clusters in the anterior insula.

  • * Significant correlations (P < 0.05, one-tailed).

  • Correlations that remain significant in the split-half analysis (P < 0.05, one-tailed) (see SI Materials and Methods for details).