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.

  • Tasting colors? Synesthesia induced with hypnosis
    on December 13, 2017 at 5:00 pm

    Hypnosis can alter the way certain individuals information process information in their brain. A new phenomenon was identified by researchers who have successfully used hypnosis to induce a functional analogue of synesthesia. The discovery can open a window into the previously unexplored domains of cognitive neuroscience. […]

  • Action games expand the brain's cognitive abilities, study suggests
    on December 12, 2017 at 3:21 pm

    The human brain learns and adapts. Numerous research studies have focused on the impact of action video games on the brain by measuring cognitive abilities, such as perception and reaction time. An international team of psychologists has assembled data from the last fifteen years to quantify how action video games impact cognition. The research has resulted in two meta-analyses, which reveal a significant improvement in the cognitive abilities of gamers. […]

  • Marijuana may help HIV patients keep mental stamina longer
    on December 12, 2017 at 2:21 pm

    A chemical found in marijuana, known as tetrahydrocannabinol, or THC, has been found to potentially slow the process in which mental decline can occur in up to 50 percent of HIV patients, says a new study. […]

  • Selecting sounds: How the brain knows what to listen to
    on December 11, 2017 at 7:03 pm

    How is it that we are able -- without any noticeable effort -- to listen to a friend talk in a crowded café or follow the melody of a violin within an orchestra? Scientists have developed a new approach to how the brain singles out a specific stream of sound from other distracting sounds. […]

  • Infant brain responses predict reading speed in secondary school
    on December 11, 2017 at 2:19 pm

    A new study has found that the brain responses of infants with an inherited risk for dyslexia, a specific reading disability, predict their future reading speed in secondary school. […]

  • How individuals with schizophrenia view their experiences and confidence in judgments may influence...
    on December 8, 2017 at 2:55 pm

    A schizophrenia patient's own perceptions of their experiences -- and confidence in their judgments -- may be factors that can help them overcome challenges to get the life they wish, suggests a new paper. […]

  • Genes behind higher education linked to lower risk of Alzheimer’s
    on December 7, 2017 at 2:54 pm

    Using genetic information, researchers provide new evidence that higher educational attainment is strongly associated with a lower risk of Alzheimer’s disease. […]

  • Traumatic brain injury causes intestinal damage, study shows
    on December 6, 2017 at 10:42 pm

    A two-way link between traumatic brain injury and intestinal changes has been uncovered by research. These interactions may contribute to increased infections in these patients, and may also worsen chronic brain damage. […]

  • Some video games are good for older adults' brains
    on December 6, 2017 at 7:16 pm

    Playing 3D-platform video games on a regular basis may improve cognitive functions in seniors and increase grey matter in a brain structure called the hippocampus, a new study suggests. […]

  • CLOCK gene may hold answers to human brain evolution
    on December 6, 2017 at 7:16 pm

    A gene controlling our biological clocks plays a vital role in regulating human-specific genes important to brain evolution. These findings open new paths of research into how CLOCK proteins produced by the CLOCK gene affect brain function and the processes by which neurons find their proper place in the brain. […]

  • New method helps identify causal mechanisms in depression
    on December 6, 2017 at 5:25 pm

    People with major depressive disorder have alterations in the activity and connectivity of brain systems underlying reward and memory, according to a new study. The findings provide clues as to which regions of the brain could be at the root of symptoms, such as reduced happiness and pleasure, in depression. […]

  • Seizure study sheds light on lasting brain effects in children
    on December 6, 2017 at 5:25 pm

    Prolonged convulsive seizures in childhood could be linked to the development of other brain conditions, a study suggests. […]

  • Want to listen better? Lend a right ear
    on December 6, 2017 at 2:06 pm

    Listening requires sensitive hearing and the ability to process information into cohesive meaning. Add everyday background noise and constant interruptions, and the ability to comprehend what is heard becomes that much more difficult. Audiology researchers have found that in such demanding environments, both children and adults depend more on their right ear for processing and retaining what they hear. […]

  • Working memory positively associated with higher physical endurance, better cognitive function
    on December 5, 2017 at 2:15 pm

    A positive relationship has been found between the brain network associated with working memory -- the ability to store and process information relevant to the task at hand -- and healthy traits such as higher physical endurance and better cognitive function. […]

  • Lithium chloride blunts brain damage linked to fetal alcohol syndrome
    on December 5, 2017 at 2:03 pm

    A single dose of lithium chloride, a drug used to treat bipolar disease and aggression, blocks the sleep disturbances, memory loss, and learning problems tied to fetal alcohol syndrome, new experiments in mice show. […]

  • High-stress childhoods blind adults to potential loss
    on December 4, 2017 at 8:06 pm

    Adults who lived high-stress childhoods have trouble reading the signs that a loss or punishment is looming, leaving themselves in situations that risk avoidable health and financial problems and legal trouble. According to researchers, this difficulty may be biological, stemming from an unhelpful lack of activity in the brain when a situation should be prompting heightened awareness. And that discovery may help train at-risk young people to be better at avoiding risk. […]

  • Brain researchers gain greater understanding of how we generate internal experiences
    on December 4, 2017 at 4:29 pm

    Our mental life is rich with an enormous number of internal experiences. We can vividly recall an episode from childhood as well as what we did just five minutes ago. We can imagine and plan in detail our next vacation. How does the brain achieve this magic? In a new study researchers showed that internal experiences, such as recalling personal memories, are associated with the simultaneous activity of different cognitive systems. […]

  • New easy-to-use tool can help determine Alzheimer's risk, similar to pediatric growth curves
    on December 4, 2017 at 2:11 pm

    A simple new tool that tracks cognitive performance in adults aims to help physicians identify people who may be on the path to Alzheimer's disease or another form of dementia. […]

  • Blood flow altered in brains of preterm newborns vs. full-term infants
    on December 4, 2017 at 2:11 pm

    Cerebral blood flow of key regions of newborns' brains is altered in very premature infants and may provide an early warning sign of disturbed brain maturation well before such injury is visible on conventional imaging, according to a prospective, observational study. […]

  • Neurons have the right shape for deep learning
    on December 4, 2017 at 2:11 pm

    Researchers unveiled an algorithm that simulates how deep learning could work in our brains. The network shows that certain mammalian neurons have the shape and electrical properties that are well-suited for deep learning. […]

  • Under pressure: Novel technology to model pressure-induced cellular injuries in the brain
    on December 1, 2017 at 11:15 pm

    Brain injuries -- whether caused by trauma, tumors, hemorrhage or developmental anomalies -- often produce elevated intracranial pressure (ICP), which in turn causes cellular injuries in the brain and additional neurological deficits beyond those associated with the initial insult. Little is known about the mechanisms underlying secondary ICP-induced cellular injuries. Researchers have developed a model of ICP-induced brain injury that could help elucidate those mechanisms and uncover novel therapeutics. […]

  • Under stress, newborn babies show greater brain response to pain
    on November 30, 2017 at 5:28 pm

    When newborn babies are under stress, their brains show a heightened response to pain, a new study has found. However, you'd never know it from the way those infants act. The findings show that stress leads to an apparent disconnect between babies' brain activity and their behavior. Stressed babies may not seem to respond to pain, even as their brain is still processing it. […]

  • HIV directly impacts the brain in the early stages of the infection, report researchers
    on November 30, 2017 at 4:24 pm

    The human immunodeficiency virus (HIV) directly impacts the brain in the early stages of the infection, researchers have found. […]

  • Patients with post-traumatic stress disorder respond differently to certain sounds, research finds
    on November 30, 2017 at 2:39 pm

    A new neurobiological marker have have just been found to help recognize patients with post-traumatic stress disorder (PTSD). […]

  • Smartphone addiction creates imbalance in brain, study suggests
    on November 30, 2017 at 2:00 pm

    Researchers have found an imbalance in the brain chemistry of young people addicted to smartphones and the internet. […]

  • No evidence that gadolinium causes neurologic harm
    on November 29, 2017 at 2:04 pm

    There is no evidence that accumulation in the brain of the element gadolinium speeds cognitive decline, according to a new study. […]

  • New genetic variations linked to educational attainment: Genetic overlap between cognitive ability...
    on November 28, 2017 at 5:33 pm

    Investigators have discovered dozens of new genetic variations associated with a person's general cognitive ability. While profiling cognitive ability, researchers also discovered a genetic overlap with longevity. […]

  • Dual virtual reality/treadmill exercises promote brain plasticity in Parkinson's patients
    on November 28, 2017 at 5:01 pm

    A new study suggests that a therapy that combines virtual reality and treadmill exercise dramatically lowers the incidence of falling among Parkinson's patients by changing the brain's behavior and promoting beneficial brain plasticity, even in patients with neurodegenerative disease. […]

  • Low frequency brain stimulation improves cognition in Parkinson's disease
    on November 28, 2017 at 2:09 pm

    A multidisciplinary neuroscience study using rare, intraoperative brain recordings suggests that low frequency stimulation of a deep brain region may be able to improve cognitive function in patients with Parkinson's disease (PD). The study also hints at the broader potential of brain stimulation for treating other cognitive diseases. […]

  • Complications at birth associated with lasting chemical changes in the brain
    on November 28, 2017 at 2:09 pm

    New research shows that adults born prematurely -- who also suffered small brain injuries around the time of birth -- have lower levels of dopamine in the brain. […]