Intelligence

Intelligence News -- ScienceDaily Intelligence - nature or nurture? Researchers find a gene for intelligence and also that a bigger brain matters, yet other recent articles show how motivation affects learning.

  • Subtle hearing loss while young changes brain function
    on May 22, 2018 at 4:32 pm

    New research has found that young people with subtle hearing loss -- the kind they aren't even aware of -- are putting demands on their brains that typically wouldn't be seen until later in life. […]

  • Study finds popular 'growth mindset' educational interventions aren't very effective
    on May 22, 2018 at 3:45 pm

    A new study found that 'growth mindset interventions,' or programs that teach students they can improve their intelligence with effort -- and therefore improve grades and test scores -- don't work for students in most circumstances. […]

  • Young toddlers may learn more from interactive than noninteractive media
    on May 22, 2018 at 12:21 pm

    Preschoolers can learn from educational television, but younger toddlers may learn more from interactive digital media (such as video chats and touchscreen mobile apps) than from TV and videos alone, which don't require them to interact. The article also notes that not all children learn to the same degree from these media. […]

  • Deep space radiation treatment reboots brain's immune system
    on May 21, 2018 at 6:39 pm

    NASA and private company SpaceX plan to send humans to Mars within the next 15 years -- but need to figure out how to protect astronauts from the dangerous cosmic radiation of deep space. Now neuroscientists have identified a potential treatment for the brain damage caused by cosmic rays -- a drug that prevents memory impairment in mice exposed to simulated space radiation. […]

  • Reading the minds of pilots on the fly
    on May 21, 2018 at 5:17 pm

    Wearable brain monitoring sensors allowed researchers to measure cognitive workload while aircraft pilots completed memory tasks. […]

  • Vascular risk interacts with amyloid levels to increase age-related cognitive decline
    on May 21, 2018 at 5:15 pm

    Risk factors for heart disease and stroke appear to hasten the risk of cognitive decline in normal older individuals with evidence of very early Alzheimer's-disease-associated changes in the brain. […]

  • Want to help your child succeed in school? Add language to the math, reading mix
    on May 17, 2018 at 11:47 pm

    A new study finds that a child's language skills in kindergarten can predict his or her future proficiency in other subjects. […]

  • Smarter brains run on sparsely connected neurons
    on May 17, 2018 at 2:22 pm

    The more intelligent a person, the fewer connections there are between the neurons in his or her cerebral cortex, according to a new study performed using a specific neuroimaging technique that provides insights into the wiring of the brain on a microstructural level. […]

  • Moderate to high intensity exercise does not slow cognitive decline in people with dementia, study...
    on May 16, 2018 at 10:49 pm

    Moderate to high intensity exercise does not slow cognitive (mental) impairment in older people with dementia, finds a new trial. […]

  • For older adults, a better diet may prevent brain shrinkage
    on May 16, 2018 at 8:25 pm

    People who eat a diet rich in vegetables, fruit, nuts and fish may have bigger brains, according to a new study. […]

  • Our brains are obsessed with being social
    on May 16, 2018 at 8:25 pm

    Our brains are obsessed with being social even when we are not in social situations. A new study finds that the brain may tune towards social learning even when it is at rest. The findings demonstrate empirically for the first time how two regions of the brain experience increased connectivity during rest after encoding new social information. […]

  • Intimacy in later life does not slow memory loss
    on May 16, 2018 at 4:37 pm

    Older people who enjoy a sexually active and emotionally close relationship with their partner tend to perform better at memory tests than sexually inactive older adults on a short-term basis, but this is not the case over a longer period of time. This is according to a study using data from more than 6000 adults aged 50 and over. […]

  • How humans repress prejudices
    on May 16, 2018 at 2:14 pm

    A philosopher has used psychoanalysis to investigate why people are often not aware of their prejudices. In her accounts, she has been elaborating how prejudices can become unconscious. […]

  • Magnetic stimulation dampens brain response to drug cues in addiction
    on May 15, 2018 at 2:56 pm

    In a study investigating the use of transcranial magnetic stimulation (TMS) for drug addiction, researchers are the first to demonstrate that the noninvasive brain stimulation technique can dampen brain activity in response to drug cues in chronic alcohol users and chronic cocaine users. […]

  • Move it and use it: Exergaming may help those at risk of Alzheimer's or related dementias
    on May 15, 2018 at 12:17 pm

    Older adults with mild cognitive impairment (MCI), often a precursor to Alzheimer's, showed significant improvement with certain complex thinking and memory skills after exergaming, according to a new study. The results could encourage seniors, caregivers and health care providers to pursue or prescribe exergames (video games that also require physical exercise) in hopes of slowing the debilitating effects of those with MCI, sometimes a stage between normal brain aging and dementia. […]

  • Discovery of differences in the brains of rats classified as workers vs. slackers
    on May 14, 2018 at 5:24 pm

    Neurologists have uncovered a network of regions in the brain that are involved in determining the choice of being a 'hard-worker' or a 'slacker.' Understanding how the brain makes such decisions is one of the most fundamental questions in neuroscience and psychology, and sophisticated animal behavioral testing, coupled with advance brain imaging and stimulation techniques are shedding light on this important process. […]

  • Restoring epigenetic balance reinstates memory in flies with Alzheimer's disease symptoms
    on May 14, 2018 at 5:24 pm

    A study showed that restoring a balance between two epigenetic regulator enzymes restored learning and memory function in flies that displayed symptoms of Alzheimer's disease. […]

  • Brain size mediates the association between height and cognitive ability
    on May 14, 2018 at 1:55 pm

    Several studies have found that height and general cognitive ability, or intelligence, are positively associated. A recent study reveals a biological factor underlying this relationship: the size of the cerebral cortex. […]

  • Hostile teachers can lose students 5 percent on test scores
    on May 11, 2018 at 12:37 am

    Teachers who antagonize their students by belittling them, showing favoritism, or criticizing their contributions can damage their learning potential, a new study warns. […]

  • Neuroscientists find first evidence animals can mentally replay past events
    on May 10, 2018 at 7:02 pm

    Researchers have reported the first evidence that non-human animals can mentally replay past events from memory. The discovery could help improve the development of drugs to treat Alzheimer's disease by providing a way to study memory in animals that more closely addresses how memory works in people. […]

  • The Yogi masters were right -- meditation and breathing exercises can sharpen your mind
    on May 10, 2018 at 2:12 pm

    It has long been claimed by Yogis and Buddhists that meditation and ancient breath-focused practices, such as pranayama, strengthen our ability to focus on tasks. A new study explains for the first time the neurophysiological link between breathing and attention. […]

  • Changing students' attitudes to mathematics improves test scores
    on May 10, 2018 at 2:12 pm

    A new study finds a free 'massive, open, online course' (MOOC) led to students feeling more positive about math, more engaged during math class, and scoring significantly higher in mathematics assessments. This is the first of its kind to focus on changing students' mindsets and beliefs about their mathematics potential. […]

  • Depression linked to memory problems and brain aging
    on May 9, 2018 at 8:27 pm

    Depression in older adults may be linked to memory problems, according to new research. The study also showed that older people with greater symptoms of depression may have structural differences in the brain compared to people without symptoms. […]

  • Breakdown of brain's visual networks linked to mental illness
    on May 9, 2018 at 4:16 pm

    Brain regions that help process what we see may play a key role in mental health. Researchers used brain imaging to identify patterns of brain connectivity -- the ability of brain regions to talk to each other -- that affect a person's likelihood for developing common forms of mental illness. They found that risk of mental illness increases when the visual cortex struggles to communicate with brain networks responsible for focus and introspection. […]

  • People with OCD process emotions differently than their unaffected siblings
    on May 9, 2018 at 2:49 pm

    A new study reports that people with obsessive-compulsive disorder (OCD) feel more distress when viewing images to provoke OCD-related emotions than their unaffected siblings. Although the unaffected siblings showed lower levels of distress, they had higher levels of brain activity in regions important for attention. The findings suggest that the family members may draw on additional brain resources to compensate for potential abnormalities in emotion regulation. […]

  • Why people become more prone to distraction with age
    on May 7, 2018 at 3:19 pm

    The locus coeruleus is a nucleus that controls attention, memory and alertness, but a study shows that it seems to weaken in later years. […]

  • New evidence that infants track others' mental states
    on May 7, 2018 at 3:18 pm

    A brain-imaging study offers new support for the idea that infants can accurately track other people's beliefs. When 7-month-old infants in the study viewed videos of an actor who saw -- or failed to see -- an object being moved to a new location, activity in a brain region known to play a role in processing others' beliefs changed in the infants just as it did in adults watching the same videos. […]

  • Brain activity helps explain diabetics' negative feelings, risk for depression
    on May 7, 2018 at 3:18 pm

    For millions of Americans who are obese and living with diabetes or prediabetes, feelings of sadness, anger and anxiety are often part of daily life. A new study suggests those negative feelings may stem from problems regulating blood sugar levels that influence emotional response in the brain. […]

  • If you believe it, it's truer
    on May 7, 2018 at 1:03 pm

    A new study illuminates how rapid, involuntary mental processes kick in when responding to statements that correspond with an already held viewpoint. […]

  • New studies measure screen-based media use in children
    on May 5, 2018 at 1:18 pm

    Screen-based media are increasingly prevalent in children's lives beginning in infancy, with different aspects linked to potential benefits and developmental/health risks. Related study is the first to use MRI to explore the influence of story format (audio, illustrated, animated) on the engagement of brain networks supporting language, visual imagery and learning in preschool-age children. […]