Today, we are speaking with the one and only Robert Sapolsky, a Stanford neurobiologist, a MacArthur "Genius", and best-selling author of books exploring the nature of stress, social behavior, and — as he puts it — "the biology of the human predicament." In his latest book, Determined, Sapolsky assertively lays out his vision of a world without free will — a world where as much as we feel like we're making decisions, the reality is that our choices are completely determined by biological and environmental factors outside of our control.Before we get into it, it's worth saying that where this is heading, the reason to care about this question is that Sapolsky's argument has profound moral implications for our understanding of justice, personal responsibility, and whether any of us deserve to be judged or praised for our actions.Mentioned on the ShowDetermined: A Science of Life Without Free Will (Sapolsky, 2023)Behave: The Biology of Humans at Our Best and Worst (Sapolsky, 2018 )A Primate's Memoir: A Neuroscientist's Unconventional Life Among the Baboons (Sapolsky, 2002)Free Agents: How Evolution Gave Us Free Will (Mitchell, 2023) Sapolsky / Mitchell Debates – Part 1 (2023), Part 2 (2024)Related EpisodesIs addiction a disease? | Keith HumphreysBrain stimulation & "psychiatry 3.0" | Nolan WilliamsHow we understand each other | Laura GwilliamsGet in touchWe're doing some listener research and we want to hear from your neurons! Email us at at neuronspodcast@stanford.edu if you'd be willing to help out, and we'll be in touch with some follow-up questions.Episode CreditsThis episode was produced by Michael Osborne at 14th Street Studios, with production assistance by Morgan Honaker. Our logo is by Aimee Garza. The show is hosted by Nicholas Weiler at Stanford's Wu Tsai Neurosciences Institute. Send us a text!Thanks for listening! If you're enjoying our show, please take a moment to give us a review on your podcast app of choice and share this episode with your friends. That's how we grow as a show and bring the stories of the frontiers of neuroscience to a wider audience. Learn more about the Wu Tsai Neurosciences Institute at Stanford and follow us on Twitter, Facebook, and LinkedIn.

Join Boris Heifets, a Stanford anesthesiologist researching psychedelic medicine, and Theresa Lii, his collaborator in exploring ketamine and the placebo effect. They dive into the surprising dynamics of ketamine in depression treatment. Discover how much of its efficacy stems from the drug versus the excitement of trial participation. They also discuss the complex interplay between the placebo effect and the opioid system, while challenging conventional views on placebo in psychiatric care, revealing its potential as a valuable aspect of treatment.

Today, we are going back into the archives for one of my favorite episodes: We are talking to neuroscientist, entrepreneur, and best-selling author, David Eagleman. We're talking about synaesthesia — and if you don't know what that is, you're about to find out.Special NoteWe are beyond thrilled that From Our Neurons to Yours has won a 2024 Signal Award in the Science Podcast category. It's a big honor — thanks to everyone who voted!---Imagine Thursday. Does Thursday have a color? What about the sound of rain — does that sound taste like chocolate? Or does the sound of a saxophone feel triangular to you? For about 3% of the population, the sharp lines between our senses blend together. Textures may have tastes, sounds, shapes, numbers may have colors. This sensory crosstalk is called synesthesia, and it's not a disorder, just a different way of experiencing the world. To learn about the neuroscience behind this fascinating phenomenon and what it tells us about how our brains perceive the world, we were fortunate enough to speak with David Eagleman, a neuroscientist, author, and entrepreneur here at Stanford who has long been fascinated by synesthesia and what it means about how our perceptions shape our reality.LinksLivewired (book)Incognito (book)Wednesday Is Indigo Blue (book)Neosensory (website)Synesthete.org (website)Inner Cosmos with David Eagleman (podcast)Get in touchWe're doing some listener research and we want to hear from your neurons! Email us at at neuronspodcast@stanford.edu if you'd be willing to help out, and we'll be in touch with some follow-up questions.Episode CreditsThis episode was produced by Michael Osborne at 14th Street Studios, with production assistance by Morgan Honaker. Our logo is by Aimee Garza. The show is hosted by Nicholas Weiler at Stanford's Wu Tsai Neurosciences Institute. Send us a text!Thanks for listening! If you're enjoying our show, please take a moment to give us a review on your podcast app of choice and share this episode with your friends. That's how we grow as a show and bring the stories of the frontiers of neuroscience to a wider audience. Learn more about the Wu Tsai Neurosciences Institute at Stanford and follow us on Twitter, Facebook, and LinkedIn.

Earlier this year, President Obama's signature BRAIN Initiative, which has powered advances in neuroscience for the past 10 years, had its budget slashed by 40%. Over the past decade, the BRAIN Initiative made roughly $4 billion in targeted investments in more than 1500 research projects across the country and has dramatically accelerated progress tackling fundamental challenges in neuroscience. As we head into the next federal budget cycle, the future of the initiative remains uncertain. Today we take stock of how the BRAIN Initiative transformed neuroscience over the past 10 years, and what the outlook is for the future of the field.To give us an unparalleled behind the scenes view, we are fortunate to have Bill Newsome with us on the show. A world renowned expert in the brain mechanisms of visual perception and decision-making, Bill co-chaired the original BRAIN Initiative planning committee in 2013 (the same year he became the founding director of the Wu Tsai Neurosciences Institute here at Stanford). Don't miss this conversation!Learn MoreAbout the BRAIN Initiative NIH BRAIN Initiative websiteA Leader of Obama's New Brain Initiative Explains Why We Need It (WIRED, April 2013)BRAIN @ 10: A decade of innovation (Neuron, Sept 2024)Reflecting on a decade of BRAIN—10 Institutes and Centers, one mission (NIH BRAIN Blog, Aug 2024)About last year's funding cuts: Understanding the BRAIN Initiative budget (NIH BRAIN Initiative)$278 million cut in BRAIN Initiative funding leaves neuroscientists in limbo (The Transmitter, April 2024)The Future of BRAIN Initiative Funding Remains Unclear (The Transmitter, July 2024)Get in touchWe're doing some listener research and we want to hear from your neurons! Email us at at neuronspodcast@stanford.edu if you'd be willing to help out, and we'll be in touch with some follow-up questions.Episode CreditsThis episode was produced by Michael Osborne at 14th Street Studios, with production assistance by Morgan Honaker. Our logo is by Aimee Garza. The show is hosted by Nicholas Weiler at Stanford's Wu Tsai Neurosciences Institute. Send us a text!Thanks for listening! If you're enjoying our show, please take a moment to give us a review on your podcast app of choice and share this episode with your friends. That's how we grow as a show and bring the stories of the frontiers of neuroscience to a wider audience. Learn more about the Wu Tsai Neurosciences Institute at Stanford and follow us on Twitter, Facebook, and LinkedIn.

Given the widespread legalization of cannabis for medical and recreational uses, you'd think we'd have a better understanding of how it works. But ask a neuroscientist exactly how cannabinoid compounds like THC and CBD alter our perceptions or lead to potential medical benefits, and you'll soon learn just how little we know.We know that these molecules hijack an ancient signaling system in the brain called the "endocannabinoid" system (translation: the "cannabinoids within"). These somewhat exotic signaling molecules (made of fatty lipids and traveling "backwards" compared to other transmitters) have been deeply mysterious until recently, when new tools made it possible to visualize their activity directly in the brain.So what is the "day job" of the endocannabinoid system — and how does it connect to the dramatic highs that come with taking THC or the medical benefits of CBD? To unpack all this, we're talking this week with neuroscientist Ivan Soltesz, the James Doty Professor of Neurosurgery and Neuroscience at Stanford, and a leading expert on the endocannabinoid system.Learn MoreThe Soltesz Lab"Weeding out bad waves: towards selective cannabinoid circuit control in epilepsy" (Soltesz et al, Nature Reviews Neuroscience, 2015) "Keep off the grass? Cannabis, cognition and addiction" (Parsons et al, Nature Reviews Neuroscience, 2016)"Marijuana-like brain substance calms seizures but increases aftereffects, study finds" (Goldman, Stanford Medicine News, 2021)"Retrograde endocannabinoid signaling at inhibitory synapses in vivo" (Dudok et al, Science, 2024)Vote for us!We are a finalist for a prestigious Signal Award for Best Science Podcast of 2024! Share your love for the show by voting for us in the Listener's Choice category by October 17. Thanks in advance!Get in touch:We're doing some listener research and we want to hear from your neurons! Email us at at neuronspodcast@stanford.edu if you'd be willing to help out, and we'll be in touch with some follow-up questions.Episode CreditsThis episode was produced by Michael Osborne at 14th Street Studios, with production assistance by Morgan Honaker. Our logo is by Aimee Garza. The show is hosted by Nicholas Weiler at Stanford's Wu Tsai Neurosciences Institute. Send us a text!Thanks for listening! If you're enjoying our show, please take a moment to give us a review on your podcast app of choice and share this episode with your friends. That's how we grow as a show and bring the stories of the frontiers of neuroscience to a wider audience. Learn more about the Wu Tsai Neurosciences Institute at Stanford and follow us on Twitter, Facebook, and LinkedIn.

Lisa Giocomo, a Stanford neurobiologist, delves into the fascinating correlation between memory and navigation. She explains the ancient technique of memory palaces, showing how familiar spaces help us remember information. The discussion brings to light the vital role of the hippocampus in forming mental maps and its tie to our personal narratives. Giocomo also explores how movement influences memory, highlighting that physical experiences and emotions enhance retention, ultimately revealing how we construct our identity through our spatial understanding.

Mike Greicius, a Stanford neurologist and expert on Alzheimer's treatments, discusses the recent surge of amyloid-clearing drugs. He critiques their effectiveness, suggesting they may cause more harm than good. Greicius highlights the skepticism among doctors regarding these drugs due to minimal cognitive benefits seen in trials. He also explores genetic factors influencing Alzheimer's risk and the shift in research focus from amyloid to tau proteins, offering a glimpse of hope for more effective therapies in the future.

Getting help for depression can be like purgatory. Setting aside for a moment the stigma and other barriers to seeking treatment in the first place, finding the right combination of medication and/or therapy can be a months- or years-long process of trial and error. And for about one third of people, nothing seems to work.Today we're talking with Dr. Leanne Williams, the founding director of the Stanford Center for Precision Mental Health and Wellness and Vincent V.C. Woo Professor in the Stanford Department of Psychiatry and Behavioral Sciences. Williams and her team have recently used brain imaging and machine learning techniques to identify six distinct "biotypes" of depression — each of which may require a different approach to treatment. Beyond setting the stage for more targeted therapies, better understanding the biology behind the disease could finally cut through the stigma of one of the world's most common brain disorders.Learn moreWilliams' Personalized and Translational Neuroscience Lab (PANlab)The Stanford Center for Precision Mental Health and WellnessNEW: Cognitive behavioral therapy enhances brain circuits to relieve depression (Stanford Medicine, 2024)Six distinct types of depression identified in Stanford Medicine-led study(Stanford Medicine, 2024)Personalized brain circuit scores identify clinically distinct biotypes in depression and anxiety (Nature Medicine, 2024)Brain scans could help personalize treatment for people who are depressed or suicidal (Science, 2022)Williams' scientific publicationsEpisode CreditsThis episode was produced by Michael Osborne, with production assistance by Morgan Honaker, and hosted by Nicholas Weiler. Art by Aimee Garza.Send us a text!Thanks for listening! If you're enjoying our show, please take a moment to give us a review on your podcast app of choice and share this episode with your friends. That's how we grow as a show and bring the stories of the frontiers of neuroscience to a wider audience. Learn more about the Wu Tsai Neurosciences Institute at Stanford and follow us on Twitter, Facebook, and LinkedIn.

In a compelling discussion, Stanford neuro-oncologist Michelle Monje sheds light on her groundbreaking work in cancer neuroscience. She reveals how deadly brain tumors engage with healthy brain tissue, relying on electrical signals to thrive. Monje explores the surprising dependency of many cancers on the nervous system, opening up new avenues for treatment. The conversation dives into the challenges of treating high-grade gliomas in children and the dynamic interplay between gliomas and neurons, highlighting innovative therapeutic strategies on the horizon.

This week on From Our Neurons to Yours, we're talking about using new techniques for growing human brain tissue in the lab to solve a rare neurological disorder.Host Nicholas Weiler sits down with Sergiu Pasca an innovative Stanford scientist who has developed groundbreaking technologies to grow human brain tissue in the lab, creating "organoids" and "assembloids" that model brain disorders like autism and schizophrenia. Pasca describes the process of turning patient skin cells into embryo-like stem cells and then into functional brain cells that can live and develop for over two years, and even be transplanted into rat brains to study their growth and development.It may sound like science fiction, but these techniques represent a major step toward understanding and treating complex neurological conditions such as Timothy syndrome, a rare genetic disorder whose biology Pasca has spent the past 15 years unraveling. Join us for fascinating glimpse into the future of developmental neuroscience and  potential for new therapies for our remarkable self-assembling brains.Learn moreBrain organoids and assembloids are new models for elucidating, treating neurodevelopmental disorders | News Center | Stanford MedicineImpact of genes linked to neurodevelopmental diseases found | News Center | Stanford MedicineScientists discover how dozens of genes may contribute to autism - The Washington PostStudy suggests approach for treating rare disorder | National Institutes of Health (NIH)How lab-grown brain cells can now help us understand brain disordersEpisode CreditsThis episode was produced by Michael Osborne, with production assistance by Morgan Honaker, and hosted by Nicholas Weiler. Art by Aimee Garza.Send us a text!Thanks for listening! If you're enjoying our show, please take a moment to give us a review on your podcast app of choice and share this episode with your friends. That's how we grow as a show and bring the stories of the frontiers of neuroscience to a wider audience. Learn more about the Wu Tsai Neurosciences Institute at Stanford and follow us on Twitter, Facebook, and LinkedIn.