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  • number sense
  • neurons
  • older person with dementia
Your search has returned 671 articles:
  • News

    A new AI acquired humanlike ‘number sense’ on its own

    Artificial intelligence can share our natural ability to make numeric snap judgments.

    Researchers observed this knack for numbers in a computer model composed of virtual brain cells, or neurons, called an artificial neural network. After being trained merely to identify objects in images — a common task for AI — the network developed virtual neurons that respond to specific quantities....

    05/13/2019 - 07:00 Artificial Intelligence, Neuroscience
  • News

    An AI used art to control monkeys’ brain cells

    New artwork created by artificial intelligence does weird things to the primate brain.

    When shown to macaques, AI-generated images purposefully caused nerve cells in the monkeys’ brains to fire more than pictures of real-world objects. The AI could also design patterns that activated specific neurons while suppressing others, researchers report in the May 3 Science.

    This...

    05/02/2019 - 14:00 Artificial Intelligence, Neuroscience
  • News

    A mysterious dementia that mimics Alzheimer’s gets named LATE

    A newly described dementia strikes people in their last decades of life. The disease, aptly named LATE, comes with symptoms that resemble Alzheimer’s disease, but is thought to be caused by something completely different.

    An international team of scientists and clinicians describe the disease and officially christen it LATE, which stands for the more technical description, “limbic-...

    04/30/2019 - 12:00 Health, Neuroscience
  • News

    A neural implant can translate brain activity into sentences

    To communicate, people unable to talk often rely on small eye movements to spell out words, a painstakingly slow process. Now, using signals picked up by a brain implant, scientists have pulled entire sentences from the brain.

    Some of these reconstructed words, spoken aloud by a virtual vocal cord, are a little garbled. But overall, the sentences are understandable, researchers from the...

    04/24/2019 - 13:00 Health, Neuroscience
  • Letters to the Editor

    Readers ponder Opportunity’s future, animal consciousness and more

    Lost Opportunity

    NASA’s Opportunity rover explored Mars for more than a decade until a dust storm last year led to its demise, Lisa Grossman reported in “After 15 years on Mars, it’s the end of the road for Opportunity” (SN: 3/16/19, p. 7).

    Reddit users had a lot of questions about the rover, nicknamed Oppy. scazon wanted to know why the estimated life spans for Opportunity and...

    04/23/2019 - 06:15 Planetary Science, Neuroscience, Biophysics
  • Feature

    When anxiety happens as early as preschool, treatments can help

    When Molly was 10 months old, her parents took her to a Halloween party with other young families. While the other babies explored their surroundings, Molly sat and watched. She’s always been cautious, says Molly’s mom, Rachel. Early on, though, the little girl’s shyness didn’t raise red flags.

    By the time Molly turned 4, however, life was getting harder — for everyone. Even though she...

    04/21/2019 - 06:00 Psychology, Mental Health, Neuroscience, Clinical Trials
  • News

    The herbal supplement kratom comes with risks

    Kratom, an herbal supplement available at vape shops and online stores, has been linked to 91 deaths over 18 months from July 2016 to December 2017, according to a report by the U.S. Centers for Disease Control and Prevention.Those deaths made up less than 1 percent of the 27,338 overdose fatalities analyzed for the report, released online on April 12. Although small, the numbers point to...

    04/19/2019 - 06:00 Neuroscience, Health
  • News

    Dead pig brains bathed in artificial fluid showed signs of cellular life

    Scientists have restored cellular activity to pig brains hours after the animals’ death — an unprecedented feat. This revival, achieved with a sophisticated system of artificial fluid, took place four hours after the pigs’ demise at a slaughterhouse.

    “This is a huge breakthrough,” says ethicist and legal scholar Nita Farahany of Duke University, who wasn’t involved in the research. “It...

    04/17/2019 - 13:15 Neuroscience, Health
  • News

    Ketamine cultivates new nerve cell connections in mice

    Ketamine banishes depression by slowly coaxing nerve cells to sprout new connections, a study of mice suggests. The finding, published in the April 12 Science, may help explain how the hallucinogenic anesthetic can ease some people’s severe depression.

    The results are timely, coming on the heels of the U.S. Food and Drug Administration’s March 5 approval of a nasal spray containing a...

    04/11/2019 - 14:00 Health, Neuroscience
  • Soapbox

    Our brains sculpt each other. So why do we study them in isolation?

    Brains have long been star subjects for neuroscientists. But the typical “brain in a jar” experiments that focus on one subject in isolation may be missing a huge part of what makes us human — our social ties. 

    “There’s this assumption that we can understand how the mind works by just looking at individual minds, and not looking at them in interactions,” says social neuroscientist Thalia...

    04/09/2019 - 07:00 Neuroscience