Now consider the third possibility: there is no snake, and you don’t see a snake. In this case, your visual predictions of a snake are corrected quickly; however, your interoceptive predictions are not. Your body-budgeting regions keep predicting adjustments to your budget long after the predicted need is over. You therefore may take a long time to calm down, even if you know there is nothing wrong. Remember when I compared your brain to a scientist who makes and tests hypotheses? Your body-budgeting regions are like a mostly deaf scientist: they make predictions but have a hard time listening
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