Author response image 3. Activation maps with and without physiological correction for the 1^st level GLM.

(a) Main effect of interoceptive attention (interoceptive task vs. exteroceptive task). (b) Interaction between attention type and breath-curve feedback condition ([delayed – non-delayed]_{interoceptive task} – [delayed – non-delayed]_{exteroceptive task}). (c) The interaction patterns of the left and right anterior insular cortex (AIC) activity without physiological correction. (d) The interaction patterns of the left and right AIC activity with physiological correction.