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Your search has returned 603 articles:
  • Science Ticker

    Publicity over a memory test Trump took could skew its results

    When President Donald Trump took a mental test as part of his physical in January, the results called attention to far more than his fitness for office. (He passed with a perfect score, according to his physician.) It put a test commonly used to catch early signs of dementia in the spotlight. That publicity could lead to missed diagnoses, researchers warn July 16 in JAMA Neurology.

    ...

    07/16/2018 - 11:00 Health, Neuroscience
  • Feature

    The brain may clean out Alzheimer’s plaques during sleep

    Neuroscientist Barbara Bendlin studies the brain as Alzheimer’s disease develops. When she goes home, she tries to leave her work in the lab. But one recent research project has crossed into her personal life: She now takes sleep much more seriously.

    Bendlin works at the University of Wisconsin–Madison, home to the Wisconsin Registry for Alzheimer’s Prevention, a study of more than 1,500...

    07/15/2018 - 06:00 Biomedicine, Neuroscience, Mental Health
  • News

    Pregnancy depression is on the rise, a survey suggests

    Today’s young women are more likely to experience depression and anxiety during pregnancy than their mothers were, a generation-spanning survey finds.

    From 1990 to 1992, about 17 percent of young pregnant women in southwest England who participated in the study had signs of depressed mood. But the generation that followed, including these women’s daughters and sons’ partners, fared worse...

    07/13/2018 - 11:00 Neuroscience, Health
  • News

    The right mix of gut microbes relieves autism symptoms in the long run

    MADISON, Wis. — Giving children with autism a healthier mix of gut bacteria as a way to improve behavioral symptoms continued to work even two years after treatment ended.

    The finding may solidify the connection between tummy troubles and autism, and provide more evidence that the gut microbiome — the collection of bacteria and other microbes that live in the intestines — can influence...

    07/12/2018 - 13:00 Microbiology, Neuroscience
  • News in Brief

    Vaginal microbes in mice transfer stress to their pups

    Mouse mothers can transmit stress signals to offspring, changing the way the pups’ bodies and brains develop. Some of these stress messages get delivered during birth, scientists suggest July 9 in Nature Neuroscience.

    Researchers suspected that vaginal microbes from stressed-out moms could affect male pups in ways that leave them vulnerable to stress later in life (SN: 12/14/2013, p. 13...

    07/09/2018 - 14:56 Neuroscience
  • News

    Nerve cells that help control hunger have been ID’d in mice

    Newly identified nerve cells deep in the brains of mice compel them to eat. Similar cells exist in people, too, and may ultimately represent a new way to target eating disorders and obesity.

    These neurons, described in the July 6 Science, are not the first discovered to control appetite. But because of the mysterious brain region where they are found and the potential relevance to people...

    07/05/2018 - 15:43 Neuroscience
  • News

    A brain chemical tied to narcolepsy may play a role in opioid addiction

    Using opioids gives some brain cells a call to action.

    Opioid addicts’ brains, examined after death, contain about 50 percent more nerve cells that release a molecule called hypocretin, compared with people who didn’t use the drugs, a new study finds. Giving the opiate morphine to mice also induced similar changes in their brains. But the increase didn’t come from new nerve cells, or...

    06/27/2018 - 14:00 Neuroscience, Health
  • News in Brief

    Watch the brain jiggle with each heartbeat

    With every heartbeat, fluid squishes through the brain and jiggles it like a bowl full of jelly.

    A new twist on magnetic resonance imaging illuminates these pulsing brain ripples, movements so subtle that they had escaped detection by current imaging technology. Abnormal brain motion could signal trouble, such as aneurysms or damage from a concussion.

    In the new work, scientists...

    06/26/2018 - 07:00 Neuroscience
  • Science Ticker

    How domestication changed rabbits’ brains

    Domestic rabbits have smaller brains relative to their body size than wild rabbits do, a new study determined. And that’s not the only change getting tamed by humans wrought on bunny brains.

    Two “fear centers” are the most altered brain regions between wild and domestic rabbits. Domestic rabbits have smaller amygdalae (emotion-processing centers that play a key role in the fight-or-...

    06/25/2018 - 15:00 Neuroscience, Animals
  • News

    New studies add evidence to a possible link between Alzheimer’s and herpesvirus

    Joel Dudley and his colleagues were searching through datasets for Alzheimer’s disease vulnerabilities to exploit in creating a treatment when they stumbled across a surprising correlation: Many of the brains they looked at had signs of herpesvirus infection. But those from people with Alzheimer’s disease had much higher levels of viral DNA than those from healthy people.

    In particular,...

    06/22/2018 - 06:00 Health, Neuroscience, Genetics