What happens inside your body

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A note for Lesson no. 4, "Your Brain Predicts (Almost) Everything You Do," in Seven and a Half Lessons About the Brain by Lisa Feldman Barrett.
Some context from page 67 is:

Your past experiences include not only what happened in the world around you but also what happened inside your body.

The movements inside your body — your heart pumping, your lungs expanding, and so on — create a continuous stream of sense data. This sense data ascends to the brain via several neural pathways. Your brain uses this data to model what is going on inside your body. This is called interoception.[1][2][3][4]


  1. Craig, A. D. 2015. How Do You Feel? An Interoceptive Moment with Your Neurobiological Self. Princeton, NJ: Princeton University Press
  2. Barrett, Lisa F., and W. Kyle Simmons. 2015. "Interoceptive Predictions in the Brain." Nature Reviews Neuroscience 16 (7): 419-429.
  3. Seth, Anil K., and Karl J. Friston. 2016. "Active Interoceptive Inference and the Emotional Brain." Philosophical Transactions of the Royal Society B: Biological Sciences 371 (1708): 20160007.
  4. Kleckner, Ian R., Jiahe Zhang, Alexandra Touroutoglou, Lorena Chanes, Chengie Xia, W. Kyle Simmons, Karen S. Quigley, Brad C. Dickerson, and Lisa Feldman Barrett. 2017. "Evidence For a Large-Scale Brain System Supporting Allostasis and Interoception in Humans." Nature Human Behavior 1 (5): 1–14.