logo
episode-header-image
Mar 2023
11m 29s

Why Scientists Just Mapped Every Synapse...

NPR
About this episode
To really understand the human brain, scientists say you'd have to map its wiring. The only problem: there are more than 100 trillion different connections to find, trace and characterize. But a team of scientists has made a big stride toward this goal, a complete wiring diagram of a teeny, tiny brain: the fruit fly larva.

With a full map, or connectome, of the larval fruit fly brain, scientists can start to understand how behaviors shape, and are shaped by, the specific wiring of neural circuits.

On today's episode, our resident neuroscience aficionado, NPR science correspondent Jon Hamilton, talks over the new findings with Short Wave co-host Emily Kwong, and explains why we big-brained humans ought to care.

Learn more about sponsor message choices: podcastchoices.com/adchoices

NPR Privacy Policy
Up next
Yesterday
Nature Quest: What Does Climate Change Sound Like?
Feel like summers are hotter than they used to be? It’s not just your imagination. Climate researchers say that average annual temperatures around the country have been trending upwards for the past 50 years — and are still on the rise. But it can be hard to represent those numbe ... Show More
13m 31s
Aug 25
Sea Camp: To Mine Or Not To Mine
Deep sea mining for rare earth elements could start as early as 2026, even as 38 countries have called for a moratorium on it. The metals that companies are targeting are used in many green technologies like electric cars and wind turbines – but mining them is destructive to the ... Show More
13m 17s
Aug 22
Could labs replace your natural chocolate?
Chocolate may fill grocery store shelves around the world, but the raw product that powers chocolate is far more selective. The majority of chocolate farms are found in West Africa and South America – just 20 degrees north or south of the equator. Each farm produces chocolate of ... Show More
8m 50s
Recommended Episodes
Mar 2021
The Theory of a Thousand Brains
In this episode, we talk with Jeff Hawkins—an entrepreneur and scientist, known for inventing some of the earliest handheld computers, the Palm and the Treo, who then turned his career to neuroscience and founded the Redwood Center for Theoretical Neuroscience in 2002 and Numenta ... Show More
39m 36s
Aug 2022
Brains
Brian Cox and Robin Ince are joined by comedian Alan Davies and neuroscientists Prof Uta Frith and Prof Sophie Scott. They discover the secret to why humans are such social creatures and why two brains are definitely better than one. Our brains are wired to learn from and mimic o ... Show More
42m 25s
Oct 2021
Can we grow a conscious brain?
Philosophers have long pondered the concept of a brain in a jar, hooked up to a simulated world. Though this has largely remained a thought experiment, CrowdScience listener JP wants to know if it might become reality in the not-too-distant future, with advances in stem cell rese ... Show More
35m 46s
Apr 2017
BS 133 Counting Neurons with Dr. Suzana Herculano-Houzel
How many neurons does the typical human brain contain? The oft-quoted number of 100 billion turns out to have been a guess that was wrong! By a lot! Dr. Suzana Herculano-Houzel is the Brazilian neuroscientist who developed a revolutionary new technique for accurately counting the ... Show More
1h 4m
Jun 2024
197 - Computer Chips In Your Brain
On today’s episode: Orchids might be supportive, loving parents! We’ve been hearing lots of news about Neuralink’s brain implants, so let’s talk about how it works and what’s going on. All that and more today on All Around Science... RESOURCES Third thumb! Orchids support seedlin ... Show More
58 m
Nov 2015
Neuroscience from a Data Scientist's Perspective
... or should this have been called data science from a neuroscientist's perspective? Either way, I'm sure you'll enjoy this discussion with Laurie Skelly. Laurie earned a PhD in Integrative Neuroscience from the Department of Psychology at the University of Chicago. In her life ... Show More
40m 18s
Jan 2023
Look at the Big Brain on Humans
On today’s episode: Why is it ancient roman buildings are still standing? Self-healing concrete! What’s better than camouflage? Invisibility! All that and more today on All Around Science. LINKS: [ARTICLE] First-in-Class Honeybee Vaccine Receives Conditional License from the USDA ... Show More
52m 15s
Jan 2022
Have we got it wrong on Omicron?
Studies using swabs from coronavirus patients seem to contradict earlier findings from cell cultures which showed Omicon replicated faster than earlier variants. As Benjamin Meyer from the centre for Vaccinology at the University of Geneva, explains there may be other reasons why ... Show More
57m 34s
Mar 2021
479: Lisa Feldman Barrett | Seven and a Half Lessons About the Brain
Lisa Feldman Barrett (@lfeldmanbarrett) is among the top one percent most-cited scientists in the world for her revolutionary research in psychology and neuroscience. Her new book, Seven and a Half Lessons About the Brain, is out now. What We Discuss with Lisa Feldman Barrett: Ou ... Show More
1h 19m
Apr 2011
Neuromyths: What You Think You Know About Your Brain
We all know the myth that we use only 10% of our brains, but how we know it's a myth in the first place? In this episode, Robert and Julie interview neurosurgeon Dr. T. Glenn Pait and learn how neuroscience is changing the way we think about our brains. Learn more about your ad-c ... Show More
23m 45s