brain

What sounds like music to us may just be noise to a macaque monkey.

That's because a monkey's brain appears to lack critical circuits that are highly sensitive to a sound's pitch, a team reported Monday in the journal Nature Neuroscience.

The finding suggests that humans may have developed brain areas that are sensitive to pitch and tone in order to process the sounds associated with speech and music.

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Virtually all of us will have to endure some aches and pains in the course of growing older. Maybe a bad back that makes getting out of bed a grueling ordeal. Or arthritic knees that seem to throb in protest after the slightest attempt at bending.

Women tend to have more youthful brains than their male counterparts — at least when it comes to metabolism.

While age reduces the metabolism of all brains, women retain a higher rate throughout the lifespan, researchers reported Monday in the journal Proceedings of the National Academy of Sciences.

The holiday season is all about cute. You've got those ads with adorable children and those movies about baby animals with big eyes.

But when people encounter too much cuteness, the result can be something scientists call "cute aggression."

Scientists may have caught a glimpse of what sadness looks like in the brain.

A study of 21 people found that for most, feeling down was associated with greater communication between brain areas involved in emotion and memory, a team from the University of California, San Francisco reported Thursday in the journal Cell.

Can't cool off this summer? Heat waves can slow us down in ways we may not realize.

New research suggests heat stress can muddle our thinking, making simple math a little harder to do.

Alan Dambach was in his late 50s when he noticed how unsteady his hands had become.

Over the next decade, his tremor got so bad he had difficulty eating with a spoon or fixing equipment at his family's tree farm in Western Pennsylvania.

"I couldn't get nuts and bolts to work," he says.

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Anorexia, bulimia and binge eating affect tens of millions of Americans, but eating disorders remain very difficult to treat, in part because it's not clear what goes wrong in the brain.

A little electrical brain stimulation can go a long way in boosting memory.

The key is to deliver a tiny pulse of electricity to exactly the right place at exactly the right moment, a team reports in Tuesday's Nature Communications.

"We saw a 15 percent improvement in memory," says Michael Kahana, a professor of psychology at the University of Pennsylvania and an author of the study.

We live in an age of heightened awareness about concussions. From battlefields around the world to football fields in the U.S., we've heard about the dangers caused when the brain rattles around inside the skull and the possible link between concussions and the degenerative brain disease chronic traumatic encephalopathy.

A brain system involved in everything from addiction to autism appears to have evolved differently in people than in great apes, a team reports Thursday in the journal Science.

The system controls the production of dopamine, a chemical messenger that plays a major role in pleasure and rewards.

People who are thinking about killing themselves appear to have distinctive brain activity that can now be measured by a computer.

In these people, words like "death" and "trouble" produce a distinctive "neural signature" not found in others, scientists report in the journal Nature Human Behaviour. More than 44,000 people commit suicide in the U.S. each year.

Scientists in Seattle have created three-dimensional computer reconstructions of living human brain cells by studying tissue that is usually discarded during surgery.

As the country starts to get back into its most popular professional team sport, there is a reminder of how dangerous football can be.

An updated study published Tuesday by the Journal of the American Medical Association on football players and the degenerative brain disease chronic traumatic encephalopathy reveals a striking result among NFL players.

What do listening to music, hitting a baseball and solving a complex math problem have in common? They all activate less gray matter than drinking wine.

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