Neuroscience
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NeuroscienceStudy casts doubt on whether adult brain’s memory-forming region makes new cells
An examination of 54 human brains suggests that adults don’t grow new neurons in the hippocampus, contrary to several widely accepted studies.
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NeuroscienceThe brain’s helper cells have a hand in learning fear
After a traumatic experience, rat brains release inflammatory signals that come from astrocytes, suggesting a new role for the brain’s “helper” cells.
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NeuroscienceSee these first-of-a-kind views of living human nerve cells
A catalog of live brain cells reveals stunning diversity and intricate shapes, and may help scientists understand the abilities of the human brain.
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NeuroscienceAlzheimer’s protein can travel from blood to build up in the brain
Experiments in mice show Alzheimer’s protein can travel from the blood of an affected mouse to the brain of a healthy animal.
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Particle PhysicsReaders question photons colliding, black sea snakes and more
Readers had questions about brain flexibility, black sea snakes and photon collisions.
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AnimalsTo understand the origins of pain, ask a flatworm
A danger-sensing protein responds to hydrogen peroxide in planarians, results that hint at the evolutionary origins of people’s pain sensing.
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NeuroscienceThere’s no rest for the brain’s mapmakers
Navigational grid cells stay on the job during sleep.
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NeuroscienceNew book offers a peek into the mind of Oliver Sacks
The wide-ranging essays in Oliver Sacks’ ‘The River of Consciousness’ contemplate evolution, memory and more.
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NeuroscienceKay Tye improvises to understand our inner lives
To figure out how rich mental lives are created by the brain, neuroscientist Kay Tye applies “a new level of neurobiological sophistication.”
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AnimalsTo test sleep, researchers don’t let sleeping jellyfish lie
Upside-down jellyfish are the first known animals without a brain to enter a sleeplike state.
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Health & MedicineFrom day one, a frog’s developing brain is calling the shots
Frog brains help organize muscle and nerve patterns early in development.
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NeuroscienceGene variant linked to Alzheimer’s disease is a triple threat
A genetic risk factor for Alzheimer’s disease works on multiple aspects of the disease, researchers report.