Why do our minds wander? What the brain's default mode tells us about our humanity | Vinod Menon

From Our Neurons to Yours

From Our Neurons to Yours
Why do our minds wander? What the brain's default mode tells us about our humanity | Vinod Menon
Feb 12, 2026 Season 9 Episode 1
Wu Tsai Neurosciences Institute, Nicholas Weiler

Here’s a question for you that may at first seem trivial, but is actually profound: Why do our minds drift? 

If you have ever dabbled in mindfulness or meditation, you know this mind wandering has an almost gravitational pull. In fact, researchers now think we spend as much as 50 percent of our waking time in this state, which cognitive scientists have dubbed the brain’s “default mode.”

Today’s guest is Vinod Menon. He’s a giant in the field of cognitive science who played a central role in defining the brain “default mode network” back in 2003. 

In our conversation, he argues our tendency to daydream may be at the core of our self-identities, our creativity – and also many of our most troubling psychiatric disorders, from Alzheimer’s to ADHD.

Vinod Menon is Rachel L. and Walter F. Nichols, MD., Professor of Psychiatry & Behavioral Science at Stanford Medicine, and an affiliate of the Wu Tsai Neurosciences Institute.

Learn More

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.

We want to hear from your neurons! Email us at at neuronspodcast@stanford.edu

Learn more about the Wu Tsai Neurosciences Institute at Stanford and follow us on Twitter, Facebook, and LinkedIn.

Episode Artwork Why do our minds wander? What the brain's default mode tells us about our humanity | Vinod Menon 48:17 Episode Artwork Is Alzheimer's an energy crisis in the brain? Inflammation, metabolism and a new path in the search for cures | Kati Andreasson 42:40 Episode Artwork "The Emergent Mind: How Intelligence Arises in People and Machines" | Jay McClelland 39:41 Episode Artwork Could brain implants read our thoughts? | Erin Kunz 37:05 Episode Artwork NeuroForecasting: how brain activity can predict stock prices or viral videos | Brian Knutson 40:19 Episode Artwork "Why Brains Need Friends: The Neuroscience of Social Connection" | Ben Rein 38:36 Episode Artwork From doodles to Descartes: sketching and the human cognitive toolkit | Judith Fan 40:29 Episode Artwork What is psychosis? Navigating an altered reality | Jacob Ballon & Shannon Pagdon 46:07 Episode Artwork "I Heard There Was a Secret Chord: Music as Medicine" | Daniel Levitin 45:59 Episode Artwork How we learn to read (and why some struggle): what neuroscience teaches us about a transformative human technology | Bruce McCandliss 39:18 Episode Artwork Why voices light us up—but leave the autistic brain in the dark | Dan Abrams 31:51 Episode Artwork Famous & Gravy: Cosmic Marketer and the Meaning of Life | Stephen Hawking 1:01:31 Episode Artwork Can brain science save addiction policy? | Keith Humphreys 45:51 Episode Artwork How basic science transformed stroke care | Marion Buckwalter 34:51 Episode Artwork Surgery as a window into brain resilience | Martin Angst 37:32 Episode Artwork Best of: How neural prosthetics could free minds trapped by brain injury | Jaimie Henderson 22:20 Episode Artwork The secrets of resilient aging | Beth Mormino & Anthony Wagner 36:30 Episode Artwork Building AI simulations of the human brain | Dan Yamins 32:56 Episode Artwork What ChatGPT understands: Large language models and the neuroscience of meaning | Laura Gwilliams 42:31 Episode Artwork What the other half of the brain does | Brad Zuchero 35:00 Episode Artwork Stimulating the brain with sound | Kim Butts Pauly and Raag Airan 30:43 Episode Artwork Does good sleep insulate the brain against Alzheimer's? | Erin Gibson 39:25 Episode Artwork How to live in a world without free will | Robert Sapolsky 40:46 Episode Artwork The power of psychedelics meets the power of placebo: ketamine, opioids, and hope in depression treatment | Boris Heifets & Theresa Lii 35:10 Episode Artwork Seeing sounds, tasting colors: the science of synaesthesia with David Eagleman (re-release) 21:52