Neuroscience
- Neuroscience
Both fish and humans have REM-like sleep
Sleeping zebrafish have brain and body activity similar to snoozing mammals, suggesting that sleep evolved at least 450 million years ago.
- Neuroscience
A 100-hour MRI scan captured the most detailed look yet at a whole human brain
Researchers report ultraprecise imaging of a postmortem human brain.
- Planetary Science
Readers wanted to know about asteroids, lithium batteries and more
Readers had questions and comments about asteroids, lithium batteries, and pyroclastic flows.
- Health & Medicine
Rogue immune cells can infiltrate old brains
Killer T cells get into older brains where they may make mischief, a study in mice and postmortem human brain tissue finds.
- Neuroscience
This brain region may be why some robots send chills down your spine
Scientists may have traced the source of the “uncanny valley” sensation in the brain.
- Health & Medicine
Vision cells can pull double duty in the brain, detecting both color and shape
Neurons in a brain area that handles vision fire in response to more than one aspect of an object, countering earlier ideas, a study in monkeys finds.
- Health & Medicine
In mice, a high-fat diet cuts a ‘brake’ used to control appetite
A fatty diet changes the behavior of key appetite-regulating cells in a mouse brain.
- Neuroscience
Mice and bats’ brains sync up as they interact with their own kind
The brain activity of mice and bats aligns in social settings, a coordination that may hold clues about how social context influences behavior.
- Neuroscience
Female rats face sex bias too
In neurobiological studies, male lab animals tend to outnumber females, which are considered too hormonal. Scientists say it’s time for that myth to go.
- Health & Medicine
Extra fingers, often seen as useless, can offer major dexterity advantages
Two people born with six fingers on each hand can control the extra digit, using it to do tasks better than five-fingered hands, a study finds.
- Neuroscience
A new experiment didn’t find signs of dreaming in brain waves
Brain activity that powers dreams may reveal crucial insight into consciousness, but a new study failed to spot evidence of the neural flickers.
- Health & Medicine
Being bilingual is great. But it may not boost some brain functions
A large study of U.S. bilingual children didn’t turn up obvious benefits in abilities to ignore distractions or switch quickly between tasks.
