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In this episode of the Huberman Lab Podcast, the host Andrew Huberman, a neurobiology and ophthalmology professor at Stanford School of Medicine, interviews Dr. Casey Halpern, the Chief of Neurosurgery at the University of Pennsylvania School of Medicine. They discuss the innovative approach taken by Dr. Halpern's laboratory to address eating disorders and obsessive-compulsive behaviors. Instead of relying solely on traditional therapies like medications and talk therapy, they focus on using engineered devices, including deep brain stimulation, to directly stimulate specific neurons in the brain. Dr. Halpern shares insights from their research on using deep brain stimulation to treat loss of control eating and the underlying role of the nucleus accumbens, an area of the brain associated with motivation and reward-seeking behavior.
Dr. Halpern explains that obsessive-compulsive disorder (OCD) is a spectrum disorder involving dysregulation in both cortical and subcortical brain areas. Specifically, areas like the prefrontal and orbitofrontal cortex, as well as the basal ganglia, including the nucleus accumbens, are implicated in OCD. He discusses how electrical stimulation in these areas can help restore normal function and alleviate symptoms in certain patients. Dr. Halpern highlights the complex interplay between anxiety, reward circuits, and compulsive behaviors in disorders like OCD, emphasizing the need for tailored treatments to address these dysregulated brain circuits.
The conversation shifts to binge eating disorder and its connection to obesity. Dr. Halpern describes binge eating disorder as a loss of control eating characterized by consuming an enormous amount of food in a brief period of time. He clarifies that binge episodes occur at a predictable frequency, such as once a day, but may manifest as loss of control eating more frequently. He shares insights from their ongoing deep brain stimulation trial for patients with binge eating disorder and obesity, aimed at modulating the nucleus accumbens to restore normal functioning and interrupt problematic behaviors associated with food cravings and overeating.
Dr. Halpern discusses the central role of the nucleus accumbens, a key brain region involved in reward processing and motivation. He explains how repeated exposure to highly rewarding stimuli, such as high-fat food, can dysregulate this reward circuitry, leading to compulsive behaviors like overeating. Their research focuses on delivering targeted brain stimulation in real-time to disrupt aberrant signaling in the nucleus accumbens and restore normal function. By addressing the dysregulated reward circuits associated with binge eating disorder and obesity, they aim to develop more effective and personalized treatments for these conditions.
In the podcast episode, the speaker highlights two main factors that contribute to the development of binge eating disorders. The first factor is a predisposition or vulnerability to certain types of foods that are prevalent in our food-focused society. This vulnerability varies among individuals. The second factor is recurring stressful events or a stressful life, which acts as a trigger for binge eating. The speaker emphasizes the importance of understanding these factors to develop effective interventions for binge eating disorders.
The podcast explores the societal impact of binge eating disorders and the stigma associated with these conditions. The speaker discusses how society's negative perception of these patients, especially those with binge eating disorders and obesity, contributes to feelings of embarrassment and exacerbates the problem. The speaker suggests the need for a better societal understanding of these disorders, reducing stigmatization, and fostering a kinder and more supportive environment for those affected.
The episode delves into the use of deep brain stimulation (DBS) as a potential treatment for binge eating disorders and related conditions. The speaker discusses ongoing research focused on identifying specific brain regions involved in reward-seeking behaviors and cravings, such as the nucleus accumbens. The goal is to develop targeted stimulation methods that can interrupt the craving cycle and alleviate symptoms. The speaker also mentions the possibility of using non-invasive brain stimulation techniques, like transcranial magnetic stimulation (TMS), but highlights the need for further research and precision in these approaches.
Ultrasound is being explored as a non-invasive method to deliver ablation to the brain. It is FDA approved for treating tremors and shows promise for other applications. Researchers are investigating its use in modulating neuronal activity and opening the blood-brain barrier. Ultrasound could offer a powerful, non-invasive approach to understanding and treating various brain disorders, including Parkinson's, essential tremor, and psychiatric conditions like depression and OCD.
Neurosurgeons develop a calm demeanor and the ability to prioritize and manage stress due to their rigorous training. They prioritize quality time and develop tools to cope with stress. Exercise, meditation, and cultivating awareness play important roles in maintaining mental well-being. Awareness and self-reflection are considered powerful tools for patients dealing with conditions like OCD, eating disorders, and addiction, as they can improve outcomes and better detect behavioral patterns and triggers.
My guest is Casey Halpern, M.D., Chief of Stereotactic and Functional Neurosurgery and Professor of Neurosurgery at the Perelman School of Medicine at the University of Pennsylvania. Dr. Halpern’s research and clinical practice focus on using deep brain stimulation to treat compulsive and movement disorders (e.g., binge eating disorders, bulimia, obsessive-compulsive disorder (OCD) and Parkinson’s disease essential tremor, dystonia). We discuss using deep brain stimulation to help patients who suffer from movement and compulsive disorders and applying this treatment to patients afflicted with binge eating. We also explore applications of this technology to other conditions such as OCD, anorexia and tremor, and the future therapeutic directions of the use of non-invasive brain stimulation approaches, including transcranial magnetic stimulation and ultrasound, for the treatment of other psychiatric illnesses and conditions. This episode will interest those curious about the biology of eating, anorexia, bulimia, compulsive thoughts and behaviors, and movement.
For the full show notes, visit hubermanlab.com.
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Momentous: https://livemomentous.com/huberman
(00:00:00) Dr. Casey Halpern & Disordered Eating & Brain Stimulation
(00:03:35) Sponsor: LMNT
(00:08:28) Neurosurgeon’s View of the Brain, Neurosurgery Specialization
(00:13:05) Deep Brain Stimulation & Other Unexpected Positive Effects
(00:17:20) Obsessive Compulsive Disorder (OCD), Prescriptions & Cognitive Therapies
(00:25:40) Brain Areas in OCD, Risk, Rewards & Addiction
(00:29:30) Sponsor: AG1
(00:32:27) Facial and Vocal Ticks, Stimulants, Stress & Superstition
(00:39:28) Nucleus Accumbens, Reward Circuits, Eating Disorders & Obesity
(00:47:18) Stimulation of Nucleus Accumbens, Continuous vs. Episodic Stimulation
(00:49:49) Binge Eating Disorder & Loss of Control Eating
(00:53:02) Developing Binge Eating Disorder: Predisposition, Environment, Stress
(01:02:07) Electrodes in Nucleus Accumbens, Identifying “Craving Cells”
(01:11:41) Effects of Stimulation, Interrupting Craving, Intermediate Stimulation
(01:16:46) Anorexia, Obesity & Compulsions, Potential Treatments for Anorexia
(01:23:14) Non-Invasive Brain Stimulation, Transcranial Magnetic Stimulation
(01:32:27) MRI-Guided Focused Ultrasound: Tremor, Essential Tremor & Parkinson’s
(01:36:40) Future of Non-Invasive Brain Stimulation, Epilepsy & Depression
(01:41:51) Pre-Behavioral States in Compulsion & Awareness, Mood Provocation
(01:48:02) Machine Learning/Artificial Intelligence & Compulsion Predictions
(01:53:05) Neurosurgeon Hands, Resistance Training & Deadlifts
(01:59:00) “Neurosurgeon Calm,” Quality Time & Prioritization, Neurosurgeon Training
(02:09:53) Daily Habits: Sleep, Exercise, Mediation
(02:11:59) Zero-Cost Support, YouTube Feedback, Spotify & Apple Reviews, Sponsors, Momentous Supplements, Neural Network Newsletter, Instagram, Twitter, Facebook, LinkedIn
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