A) Correlations between emotion-specific bodily sensations and interoceptive accuracy. Significant positive correlations were found between the average sensation magnitude in emotion-specific ROIs and interoceptive accuracy as measured by the heartbeat tracking task across individuals (r = 0.367, p = 0.042). Individual participants were scattered on the two axes (x-axis: interoceptive accuracy and y-axis: average sensation magnitude in emotion-specific ROIs). B) Visualization of the covariate map to individual interoceptive accuracy. The regions showing positive correlations with interoceptive accuracy matched well with regions showing a significant relationship with each emotional state (anger, fear, disgust, happiness, sadness, and neutral). The general distributed pattern of correlation coefficients was visualized with a threshold of |r| > 0.2.