Only two correlations survived FDR correction for multiple comparisons, with a third being marginally significant: A negative correlation of Antisocial Attitudes with Stomach Activation (ρ = − 0.21, p = 0.002, p FDR = 0.03) and with Heart Activation (ρ = − 0.19, p = 0.003, p FDR = 0.03), and an almost-significant negative correlation of Impulsivity with Head Activation (ρ = − 0.17, p = 0.01, p FDR = 0.06; Fig. 2 c).
Antisocial Attitudes also showed a trend towards a positive correlation with emotion differentiation (ρ = 0.12, p = 0.1); that is, higher Antisocial Attitudes scores were associated with lower BSM representativeness but higher emotion differentiation.
In contrast, a previous study 78 found that interoceptive accuracy, using a heartbeat detection task, was predictive of magnitude and specificity of BSM colouration, suggesting that there may be significant variation at the level of individual sensitivity to somatosensation; our data support this, finding correlations between BSM factors and interoceptive sensitivity.