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News Articles: Brain research

Researchers integrated four organoids that represent the four components of the human sensory pathway, along which pain signals are conveyed to the brain. Stimulation of the sensory organoid (top) by substances, such as capsaicin, triggers neuronal activity that is then transmitted throughout the rest of the organoids.

Tagged as: 

  • Health

Pain pathway in a dish could aid search for new analgesic drugs

Scientists have recreated a pathway that senses pain, using clusters of human nerve cells grown in a dish.

April 10, 2025
|
By:
  • Jon Hamilton
Glowing lines and spots encircling a human brain

Tagged as: 

  • Research News

This metabolic brain boost revives memory in Alzheimer’s mice

An experimental cancer drug that helps the brain turn glucose into energy was able to reverse memory loss in a mouse model of Alzheimer’s disease.

September 02, 2024
|
By:
  • Jon Hamilton
The black-capped chickadee, seen here, is well known for its strong episodic memory.

Tagged as: 

  • Science

The "barcodes" powering these tiny songbirds' memories may also help human memory

Tiny, black-capped chickadees have big memories. They stash food in hundreds to thousands of locations in the wild – and then come back to these stashes when other food sources are low. Now, researchers at Columbia University's Zuckerman Institute think neural activity that works like a barcode may be to thank for this impressive feat — and that it might be a clue for how memories work across species.

Curious about other animal behavior mysteries? Email us at shortwave@npr.org.

April 05, 2024
|
By:
  • Regina G. Barber,
  • Rachel Carlson,
  • and 3 more
Scientists have built an enormous atlas of the human brain that could help them chart a path toward preventing and treating many different neurological disorders.

Tagged as: 

  • Research News

Scientists built the largest-ever map of the human brain. Here's what they found

A new atlas of the human brain could help explain abilities like language – and vulnerabilities, like Alzheimer's disease.

October 16, 2023
|
By:
  • Jon Hamilton
Ekemeni Riley is the managing director of Aligning Science Across Parkinson's, a research initiative that worked on an effort to bring a more diverse population into a study on genes that carry a greater risk for the disease. A team that included scientists from Lagos, London and the U.S. found a previously unknown gene variant that can nearly quadruple the risk for people of African ancestry.

Tagged as: 

  • Global Health

Risk factor for Parkinson's discovered in genes from people of African descent

An effort to diversify genetic studies has led to a discovery about Parkinson's disease in people of African descent.

September 25, 2023
|
By:
  • Jon Hamilton
A precisely timed pulse to a brain area just behind the ear can help reduce memory deficits in patients suffering moderate to severe traumatic brain injuries.

Tagged as: 

  • Research News

When a brain injury impairs memory, a pulse of electricity may help

A severe traumatic brain injury can make it hard to remember recent events or conversations. But a form of brain stimulation appears to ease this memory deficit.

August 11, 2023
|
By:
  • Jon Hamilton
In Huntington's disease, proteins form toxic clumps that kill brain cells.

Tagged as: 

  • Research News

Huntington's spreads like 'fire in the brain.' Scientists say they've found the spark

Diseases like Alzheimer's and Parkinson's spread through the brain like a forest fire. A new study suggests how the fire starts.

June 19, 2023
|
By:
  • Jon Hamilton
A new study finds that stimulating the brain during sleep can improve memory.

Tagged as: 

  • Research News

Scientists zap sleeping humans' brains with electricity to improve their memory

Scientists have shown that deep brain stimulation during sleep can help people retain new information. The approach could help people with memory problems related to disorders like Alzheimer's.

June 02, 2023
|
By:
  • Jon Hamilton
This video still shows a view of one person's cerebral cortex. Pink areas have above-average activity; blue areas have below-average activity.

Tagged as: 

  • Science

A decoder that uses brain scans to know what you mean — mostly

Scientists have decoded streams of words in the brain using artificial intelligence and the data from MRI scans.

May 02, 2023
|
By:
  • Jon Hamilton
The seemingly simple act of reaching for a cup of coffee actually activates parts of the brain involved in motion, planning and emotions.

Tagged as: 

  • Science

An overlooked brain system helps you grab a coffee — and plan your next cup

Researchers have found a system in the brain that seems to integrate control of individual muscles with a person's intentions, emotions and entire body.

April 20, 2023
|
By:
  • Jon Hamilton
Mora Leeb places some pieces into a puzzle during a local puzzle tournament. The 15-year-old has grown up without the left side of her brain after it was removed when she was very young.

Tagged as: 

  • Science

Meet the 'glass-half-full girl' whose brain rewired after losing a hemisphere

Mora Leeb was 9 months old when surgeons removed half her brain. Now 15, she plays soccer and tells jokes. Scientists say Mora is an extreme example of a process known as brain plasticity.

March 22, 2023
|
By:
  • Jon Hamilton
What looks like a pin-headed critter on the right is actually a larval version of the fruit fly on the left. Both have remarkably complex brains, scientists say, with different regions devoted to decision-making, learning and navigation.

Tagged as: 

  • Science

The first wiring map of an insect's brain hints at incredible complexity

Researchers have mapped the more than 500,000 connections in the intricate brain of a fruit fly larva. This map, they say, could help scientists figure out how learning changes the human brain, too.

March 09, 2023
|
By:
  • Jon Hamilton
Research participant Heather Rendulic prepares to grasp and move a can of tomato soup at Rehab Neural Engineering Labs at the University of Pittsburgh.

Tagged as: 

  • Science

Spinal stimulation can improve arm and hand movement years after a stroke

Two stroke patients regained control of a disabled arm and hand after researchers delivered electrical stimulation to their spines, paving the way toward a medical device that could aid movement.

February 20, 2023
|
By:
  • Jon Hamilton
Humans have an elegant and intricate system of internal processes that help our bodies keep time, with exposure to sunlight, caffeine and meal timing all playing a role. But that doesn't account for "precision waking."

Tagged as: 

  • Health

I usually wake up just ahead of my alarm. What's up with that?

Call it "precision waking" — the alleged ability to decide when you want to wake up and then doing so, without an alarm. If you think you can do it, you're not alone, though how is still mysterious.

December 29, 2022
|
By:
  • Will Stone

Tagged as: 

  • Science

For 'time cells' in the brain, what matters is what happens in the moment

The brain uses special neurons called time cells to organize our memories of events and experiences. But, despite their name, these cells don't work like a clock.

December 21, 2022
|
By:
  • Jon Hamilton
  • Load More

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