413 ‒ The neuroscience of emotion: challenging conventional theories of emotion and much more

In this episode, Peter sits down with Dr. Lisa Feldman Barrett, a psychologist, neuroscientist, author, and distinguished professor at Northeastern University whose research challenges many of the conventional assumptions about emotions and how the brain works. Lisa is best known for her theory of constructed emotion, which challenges the idea that emotions such as fear, anger, and sadness are hardwired responses with universal biological signatures. She begins by explaining how unexpected findings early in her research led her to question traditional theories of emotion. She discusses why studying individual variation, rather than relying on averages, is essential to understanding the brain. Lisa then explores the idea that the brain is fundamentally a predictive system rather than a reactive one. She explains how past experiences and memories shape what we perceive, feel, and do. She also describes how the brain continuously anticipates and regulates metabolism through a process called allostasis. View show notes here: https://peterattiamd.com/lisafeldmanbarrett/ Become a member to receive exclusive content: https://peterattiamd.com/subscribe/ Sign up to receive Peter's email newsletter: https://peterattiamd.com/newsletter/ 0:00:00 - Intro 0:00:11 - How unexpected results in graduate school changed Lisa’s understanding of emotion 0:13:00 - Why variation is the norm for emotion, and the danger in tracking averages instead of characterizing variation 0:28:06 - Lisa’s experience with Hashimoto’s disease and the value of modeling individual variation 0:38:04 - How Lisa’s research challenges common views about emotions, and why there is no biomarker for emotions 0:47:44 - The difficulty of defining emotions and the brain’s role in regulating the body 0:52:29 - Consciousness, interoception, and the limits of subjective experience 0:59:07 - Defining emotion: fear and anger 1:13:05 - The brain as a predictive system rather than a reactive one 1:31:36 - Baseball as an example of the brain’s predictive nature 1:45:11 - How the human brain differs from that of other animals 1:51:30 - The impact of stress on metabolism, and the role of the brain in maintaining allostasis 1:59:00 - Childhood adversity, social regulation of the nervous system, and the effect of chronic stress 2:04:41 - Understanding chronic stress: why some people respond differently, and its impact on metabolism 2:12:55 - dHow practicing new predictions can change thoughts and feelings 2:16:25 - Lisa’s practice of finding awe in everyday experiences and the greater sense of agency it brings 2:25:10 - The impact of grief on nervous system regulation and the metabolic "body budget," as well as practices that reduce sadness 2:33:30 - The connection between memories and predictions, and Peter’s closing thoughts -------- About: The Peter Attia Drive is a deep-dive podcast focusing on maximizing longevity, and all that goes into that from physical to cognitive to emotional health. With over 90 million episodes downloaded, it features topics including exercise, nutritional biochemistry, cardiovascular disease, Alzheimer’s disease, cancer, mental health, and much more. Peter Attia is the founder of Early Medical, a medical practice that applies the principles of Medicine 3.0 to patients with the goal of lengthening their lifespan and simultaneously improving their healthspan. Learn more: https://peterattiamd.com Connect with Peter on: Facebook: http://bit.ly/PeterAttiaMDFB Twitter: http://bit.ly/PeterAttiaMDTW Instagram: http://bit.ly/PeterAttiaMDIG Subscribe to The Drive: Apple Podcast: http://bit.ly/TheDriveApplePodcasts Overcast: http://bit.ly/TheDriveOvercast Spotify: http://bit.ly/TheDriveSpotify Google Podcasts: http://bit.ly/TheDriveGoogle Disclaimer: This podcast is for general informational purposes only and does not constitute the practice of medicine, nursing, or other professional healthcare services, including the giving of medical advice. No doctor-patient relationship is formed. The use of this information and the materials linked to this podcast is at the user's own risk. The content on this podcast is not intended to be a substitute for professional medical advice, diagnosis, or treatment. Users should not disregard or delay in obtaining medical advice for any medical condition they have, and they should seek the assistance of their healthcare professionals for any such conditions. I take conflicts of interest very seriously. For all of my disclosures and the companies I invest in or advise, please visit my website where I keep an up-to-date and active list of such companies. For a full list of our registered and unregistered trademarks, trade names, and service marks, please review our Terms of Use: https://peterattiamd.com/terms-of-use/