Search Content | Science News

SUPPORT SCIENCE NEWS.

Science News is a nonprofit.

Support us by subscribing now.

Search Content

E.g., 08/17/2019
E.g., 08/17/2019
Your search has returned 556 images:
  • nerve cell
  • football players
  • plants
Your search has returned 1341 articles:
  • News

    Alzheimer’s targets brain cells that help people stay awake

    Alzheimer’s disease destroys command centers in the brain that keep people awake. That finding could explain why the disease often brings daytime drowsiness.

    Sleep problems can precede dementias, including Alzheimer’s, sometimes by decades. But the new result, described online August 12 in Alzheimer’s & Dementia, suggests that disordered sleeping isn’t just an early harbinger of...

    08/16/2019 - 11:30 Health, Biomedicine, Neuroscience
  • News in Brief

    Even without concussions, just one football season may damage players’ brains

    A season of head hits left its mark on college football players’ brains, even when those hits didn’t cause concussions. Routine head bumps over the course of a season were linked to abnormal brain tissue in part of players’ brain stems, researchers report August 7 in Science Advances.It’s unclear if these brain stem changes affect mental performance, or whether the changes are permanent. But...

    08/12/2019 - 10:28 Health, Neuroscience
  • Soapbox

    Plants don’t have feelings and aren’t conscious, a biologist argues

    Lincoln Taiz is peeved. Over the last decade or so, the retired plant biologist has watched the rise of the field of “plant neurobiology” with growing dismay.

    That controversial field, which debuted in a 2006 article in Trends in Plant Science, is based on the idea that plants — which do not possess brains — nonetheless handle information in ways that resemble sophisticated animal...

    08/12/2019 - 06:00 Neuroscience, Plants, Ecology
  • News

    A frog study may point to where parenting begins in the brain

    Most frogs lay oodles of eggs and quickly hop away. But some poison dart frogs baby their offspring, cleaning and hydrating eggs laid on land and piggybacking hatched tadpoles to water.

    A peek inside the brains of these nurturing amphibians reveals that in males and females, two regions linked with caring for young are the same — a finding that may provide clues to the neural...

    07/24/2019 - 07:03 Neuroscience, Animals
  • News

    Boosting a gut bacterium helps mice fight an ALS-like disease

    A friendly gut bacterium can help lessen ALS symptoms, a study of mice suggests.

    Mice that develop a degenerative nerve disease similar to amyotrophic lateral sclerosis (ALS), or Lou Gehrig’s disease, fared better when bacteria making vitamin B3 were living in their intestines, researchers report July 22 in Nature. Those results suggest that gut microbes may make molecules that can slow...

    07/22/2019 - 11:00 Neuroscience, Cells, Biomedicine
  • News

    Manipulating nerve cells makes mice ‘see’ something that’s not there

    Aiming laser lights into mice’s brains can make them “see” lines that aren’t actually there. The results, described online July 18 in Science, represent the first time scientists have created a specific visual perception with laboratory trickery.The work is “technically amazing,” says neuroscientist and psychiatrist Conor Liston at Weill Cornell Medicine in New York City. “I think every...

    07/18/2019 - 14:00 Health, Neuroscience
  • Science Visualized

    Tiny glasses help reveal how praying mantises can see in 3-D

    A praying mantis depends on precision targeting when hunting insects. Now, scientists have identified nerve cells that help calculate the depth perception required for these predators’ surgical strikes.

    In addition to providing clues about insect vision, the principles of these cells’ behavior, described June 28 in Nature Communications, may also lead to advances in robot vision or other...

    07/12/2019 - 10:00 Health, Neuroscience
  • News

    Both fish and humans have REM-like sleep

    No one should have to sleep with the fishes, but new research on zebrafish suggests that we sleep like them.

    Sleeping zebrafish have brain activity similar to both deep slow-wave sleep and rapid eye movement, or REM, sleep that’s found in mammals, researchers report July 10 in Nature. And the team may have tracked down the cells that kick off REM sleep.

    The findings suggest that...

    07/10/2019 - 13:38 Neuroscience, Physiology, Animals
  • Science Visualized

    A 100-hour MRI scan captured the most detailed look yet at a whole human brain

    Over 100 hours of scanning has yielded a 3-D picture of the whole human brain that’s more detailed than ever before. The new view, enabled by a powerful MRI, has the resolution potentially to spot objects that are smaller than 0.1 millimeters wide.

    “We haven’t seen an entire brain like this,” says electrical engineer Priti Balchandani of the Icahn School of Medicine at Mount Sinai in New...

    07/08/2019 - 10:00 Neuroscience
  • Letters to the Editor

    Readers wanted to know about asteroids, lithium batteries and more

    Heat keepers

    Long ago, molten iron could have erupted from metal asteroids in a process scientists refer to as ferrovolcanism, Lisa Grossman reported in “Metal asteroids may have once had iron-spewing volcanoes (SN: 5/11/19 & 5/25/19, p. 5). 

    “In the cold vastness of space, how long are these rocks expected to keep their thermal energy?” asked online reader Bronze Condor.

    ...

    07/06/2019 - 06:15 Planetary Science, Earth, Neuroscience