From Our Neurons to Yours

For decades, the field focused on the plaques and tangles of misfolded proteins that show up in the brains of patients with Alzheimer’s, Parkinson’s and other disorders. The natural assumption was that if you could design a drug to clear out that gunk, you could save the brain. But so far, that bet hasn't paid off. Now, researchers are taking a big step back and asking whether the plaques aren't a culprit, but rather a clue pointing to something more fundamental going wrong in our brain cells...

Today's episode is all about how childhood literally shapes the brain. Our most important experiences – from learning to read, to the growing complexity of our social lives at school, and even the video games we play – leave physical traces in how our brains get organized that shape how we see the world as adults. But how does the brain actually know what parts of our lives are actually important enough to reorganize around? How do particular experiences get under the hood to leave their mark...

Today’s episode is about the neuroscience of hard work—or maybe more specifically, the value we place on hard work. There’s something different about hiking to the top of a mountain versus taking a helicopter. The view from the top is exactly the same, but if you’ve done the hard slog to get there, the payoff is going to be much more rewarding. The question is, how does the brain know the difference? To answer this, we need to take a deep dive into the brain’s reward system, and one of ...

What if we could make the brain see-through? It sounds like science fiction, but it could revolutionize how we study the brain. Today on the show, we're talking with Guosong Hong, a faculty scholar here at the Wu Tsai Neurosciences Institute who has a unique reputation for developing creative techniques that literally shed light on the brain—from using fluorescent nanomaterials and focused ultrasound to create a virtual flashlight inside the skull, to discovering a common food dye...

Today on the show, why do some of us age faster than others? Why do some of us grow old and die before our time while others seem to simply endure? And most of us have probably wondered at one point or another, which track am I on? Turns out it might be possible to predict the whole trajectory of an animal's life at a surprisingly young age, just by looking closely at subtle patterns of behavior. That's the conclusion of a new study from researchers at the Knight Initiative for Brain Re...

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...

The AI revolution of the past few years is built on brain-inspired neural network models originally developed to study our own minds. The question is, what should we make of the fact that our own rich mental lives are built on the same foundations as the seemingly soulless chat-bots we now interact with on a daily basis? Our guest this week is Stanford cognitive scientist Jay McClelland, who has been a leading figure in this field since the 1980s, when he developed some of the first of these ...

Neuroscientists have spent the past few decades tracing the network of brain systems—some deep and emotional, and others more analytical and deliberate— that work together as we make tough choices like where to invest our money as well as more everyday decisions like which videos to watch online—or, for that matter, which podcast to listen to. You can imagine that the ability to listen in on the brain systems that guide our choices might start to let scientists predict our decisions. But toda...

Before the written word — and possibly even before speech — humans have communicated through drawing. From crude scratches in the dirt or on cave walls to the arcane symbology of the laboratory whiteboard, our instinct for conveying our thoughts visually is pretty extraordinary. We see or understand something in the world, we build an idea in our mind of what we think we see, and then using our hand and the utensil we re-create it to communicate the share our perception with others. Alo...

Most of us can agree: music is awesome. Regardless of which songs speak to you, music probably plays an important role in your life. The question is, what makes music so powerful? Why does a particular combination of sounds and rhythms grab us and affect us in the way that it does? And is it true that music can help heal patients with Alzheimer's, Parkinson's, PTSD, chronic pain, and more? To help us understand what we're learning about the neuroscience of music and how it can heal and ...

Recognizing a familiar voice is one of the brain’s earliest social feats. But what are the brain circuits that let a newborn pick out mom in a crowded nursery? How do they change as kids turn toward friends and the wider world? And what are we learning about why this instinct fails to develop in the autistic brain? This week, host Nicholas Weiler joins Stanford neuroscientist Dan Abrams on the quest to understand the neural “hub” that links our brains' hearing centers to the networks that tag...

If addiction is a disease of the brain, what does that mean for how we treat people—and how we write policy? In this wide-ranging conversation, Stanford addiction expert and policy advisor Keith Humphreys returns to the show to walk us through what neuroscience has taught us about substance use disorders and how that science intersects with law, public health, and politics. From the biology of craving to the limits of autonomy, we explore the tension between compassion and accountability, and...

We've all heard stories about someone who went in for surgery and came out...different. A grandmother who struggled with names after hip replacement, or an uncle who seemed foggy for months following cardiac bypass. But why does this happen to some people while others bounce right back? This week, we explore this question with Dr. Martin Angst, a professor of anesthesiology at Stanford who's studying the biological factors that determine cognitive outcomes after surgery. With support from the...