Articles tagged with Human Brain
Researchers found a set of neurons in the supplementary eye field that react when an individual realizes they made a mistake, shedding light on self-control and cognitive processes. This discovery has implications for understanding schizophrenia, obsessive-compulsive disorder, and psychopathic behavior.
Researchers found a specific protein, OX2, that controls inflammation in the brain. OX2 deficiency may lead to chronic brain inflammation, associated with Alzheimer's disease, multiple sclerosis, and AIDS-related dementia.
A study published by Indiana University School of Medicine found that men and women process language in different ways, with men using only the left side of their brain. The research may have implications for understanding how men and women recover from stroke and brain tumors, as well as improving imaging technologies.
Eight-month-old babies demonstrate ability to bind attributes to form a whole object, as seen in the Kanizsa Square test. This skill, previously thought to develop later in childhood, reveals insights into early infant development and cognitive processing.
A study published in Nature reveals that individual neurons in the human medial temporal lobe selectively alter their firing rates depending on the stimulus the subjects imagined. This discovery sheds new light on how the 'mind's eye' works, providing insight into the neural mechanisms underlying visual recall and imagery.
The Yale School of Medicine has launched a new center to study hypoglycemia, led by Dr. Robert Sherwin and Dr. Douglas Rothman. Researchers will use various technologies to investigate the causes and solutions for hypoglycemia, aiming to prevent severe episodes.
Researchers at UC Berkeley found that contract bridge players have increased numbers of immune cells after a game, suggesting a link between brain activity and the immune system. The study suggests that voluntary activities like bridge may help control white blood cell levels to combat disease.
Researchers at the University of Pittsburgh School of Medicine have discovered how the brain prepares to solve problems. The dorsolateral prefrontal cortex (DLPFC) becomes active when a person is getting ready to perform a task, and its activation is associated with representing and maintaining attentional demands.
Researchers used fMRI scans to identify whether participants were imagining faces or places, achieving an accuracy rate of 85% in some trials. The study has implications for understanding the minds of individuals unable to communicate due to injuries or disorders.
A new obesity treatment program has resulted in sustained weight loss for six years by developing two fundamental internal skills: self-nurturing and effective limit setting. Participants lost an average of 13 pounds in the first 12 weeks and continued to lose weight after treatment ended.
A Yale University study found that premature infants have smaller brains than full-term babies, with significant differences in brain volume and cortical regions. The study's findings suggest a link between prematurity, brain development, and cognitive outcomes.
Researchers found distinct differences in brain activity between responders and non-responders to fluoxetine, with widespread chain of events kicking in across multiple brain regions over time. The study identified critical brain areas that appear to be 'switches' controlling the direction of treatment response.
Research at the University of Michigan found a 30% higher concentration of signaling cells in people with bipolar disorder, which could explain and treat manic depression. The discovery highlights the disorder's genetic and biological roots, offering new avenues for understanding and treatment.
Researchers used fMRI to probe the roots of a longstanding hypothesis in memory research. They found that recalling sensory-specific experiences activates brain regions responsible for processing those experiences. However, they also discovered that high-level perception areas are selectively reactivated during remembering, suggesting ...
University of Maryland researchers successfully created a new brain circuit that takes over damaged vision functions in newborn hamsters. The study suggests that surgically created neural pathways might one day be used to treat brain damage and restore lost functions like vision or hearing.
Research found that prenatal brains metabolize alcohol differently than adult brains, leading to a rapid accumulation of toxic acetaldehyde. The study suggests that drinking alcoholic beverages during pregnancy can be particularly damaging to the fetus, especially the fetal brain.
Researchers found that amygdala activity levels are related to unconscious social evaluation, but not conscious attitudes. The study used fMRI to examine the role of the amygdala in racial evaluation and found a significant link between neural activity and implicit race bias.
Researchers found a dramatic reduction in hypocretin neurons in people with narcolepsy, suggesting a potential link to neurodegenerative processes or autoimmune responses. The study suggests that replacing missing hypocretin cells may reverse symptoms of the disorder, paving the way for new treatment options.
A recent study found that older women with high natural estrogen levels are less likely to suffer cognitive decline. The researchers measured free estrogen and loosely bound forms of the hormone, finding a 70% lower risk of cognitive decline in those with the highest levels.
Researchers have developed a new method to measure alcohol concentrations directly in the human brain using proton magnetic resonance spectroscopy (MRS). This technique allows scientists to study the physical interactions between alcohol and brain membranes, providing insights into the biological basis of alcohol abuse.
Researchers used Diffusion Tensor Imaging (DTI) to track water molecules in the brain, revealing damage to white matter that affects message transmission within neurons. The study links this damage to neurocognitive deficits in detoxified chronic alcoholics.
Researchers have connected lesions on the dorsal pons with multiple cases of musical hallucinations, a rare disorder where patients hear music in their mind. The study describes a quick onset of hallucinations without long-term hearing loss and sheds light on the condition's causes.
A University of Wisconsin-Madison study finds that a breakdown in the brain's regulatory system is linked to impulsive violent behavior, with common neurological threads found in areas controlling negative emotions. The research opens a new avenue for studying and possibly treating violence and aggression.
A recent study has found that long-term Ecstasy use can lead to a significant decrease in serotonin levels in the brain. The research, published by the American Academy of Neurology, reveals that Ecstasy users experience a massive release and depletion of serotonin, which can contribute to behavioral problems such as depression.
A team of neuroscientists, led by University of Chicago neurologist John Milton, partnered with LPGA professionals to investigate how the brain manages complex physical tasks. They used functional MRI to study how professional golfers prepare to swing a club and how their brains acquire new skills.
Researchers pinpointed the time it takes for the human brain to signal fullness and identified areas involved in eating. The study used functional magnetic resonance imaging (fMRI) to record activity changes in neurons, finding a connection between brain activity and traditional biochemical indicators like glucose and insulin levels.
Researchers found that ERT increased blood flow to areas involved in memory formation, such as the hippocampus and parahippocampal gyrus. The study suggests ERT may lower susceptibility to age-related memory problems and Alzheimer's disease.
Researchers at Johns Hopkins found that using both cocaine and alcohol increases the risk of brain damage. The study showed that cocaine use can lower the amount of alcohol needed to impair cognitive abilities, while heavy drinking impairs executive functions.
This study compares the effects of moderate alcohol consumption (equivalent to three glasses of wine) with that of the benzodiazepine drug Ativan, using PET scans. Researchers found that alcohol induces larger decrements in the basal ganglia and is perceived as more stimulating and reinforcing than Ativan.
University of Wisconsin researchers discover that environmental cues associated with drug use can produce profound molecular changes in brain circuits linked to learning and decision-making. The study suggests that long-term changes may persist in critical areas, particularly in people who self-administered drugs for long periods of time.
Researchers from Children's Hospital and Harvard Medical School have made a groundbreaking discovery that existing brain cells can replenish dead counterparts, potentially treating degenerative brain diseases. The study found that nerve cells in the cerebral cortex can be induced to heal themselves through a process called neuronal rep...
Researchers at Carnegie Mellon University found that the human brain employs surprising economies of effort in problem-solving by minimizing mental workload. The study used fMRI scans to identify brain activation patterns for verbal and visual thinking strategies.
Researchers at the University of Pennsylvania School of Medicine have created a stealth-like molecule called BSB that can effectively breach the blood-brain barrier and bind to amyloid plaques, enabling visualization using PET or SPECT imaging. This breakthrough paves the way for the refinement of BSB as a diagnostic tool for Alzheimer...
A novel treatment for dyslexia significantly improves reading skills in children and shows brain changes as they learn. The study's findings suggest that with the right instruction, dyslexic brains can become more efficient at processing language, leading to improved reading abilities.
Volunteers use virtual reality helmet and computer program to take actions like turning on TV or stereo by simply wishing it so, in breakthrough study that may someday enable patients with extreme paralysis to regain control of their surroundings
New antidepressant guidelines suggest both older and newer medications are effective in treating depression. A population-based study found that overweight women are less likely to receive screening for cervical and breast cancer, despite higher mortality rates from these cancers.
Researchers at Vanderbilt University found that neurons in adult monkey brains grow and form new connections in somatosensory areas after amputation or spinal cord injury, suggesting a link to phantom limb syndrome. This discovery may lead to treatment options for phantom limb pain and potentially repair severed spinal cord injuries.
Researchers at Harvard Medical School found a genetic protein that influences the brain's body map, contradicting previous thinking that neural input from the body's periphery shapes it. The discovery raises questions about individual differences in sensory function and potential genetic basis for variations in brain organization.
Recent UI studies found that frequent marijuana users have substantially lower blood flow to certain parts of their brains, indicating altered brain function. However, smoking the illicit drug does not affect brain size or structure, contradicting previous claims.
A University of Colorado study identified deposits of beta amyloid in the brains of wild, aging landlocked salmon, sparking new ideas about human aging and Alzheimer's disease. The study found that while brain regions responsible for memory and navigation were affected, other areas continued to function normally.
Researchers found that the inferior parietal lobule is smaller in people with schizophrenia and 'built backward' from normal patterns in men. This abnormality may account for symptoms of distorted reality in schizophrenic patients.
Researchers have found that individuals with schizophrenia have significantly lower levels of reelin in their brains, suggesting a potential molecular origin for the condition. The discovery has important implications for treatment and may lead to new therapeutic strategies.
Dr. Bushnell's laboratory uses human brain imaging techniques to study pain, finding four key brain regions involved in the experience. Activity in these regions is linked to emotional responses to pain, suggesting that psychological state can alter its perception.
Researchers at University of Maryland School of Medicine identified zonulin and zot proteins in human brain that regulate the blood-brain barrier. This discovery could lead to new treatments for brain disorders such as Multiple Sclerosis, Alzheimer's disease, and HIV infection.
Aging affects dopamine levels, leading to decreased glucose metabolism and brain activity in regions related to cognition. This finding may help develop interventions for age-related cognitive decline.
Scientists at Johns Hopkins have discovered striking differences in the inferior parietal lobule (IPL) between men and women, which may explain well-known trends such as more men exceling in math and physics. The study found that men have a larger IPL overall and on their left side, while women have a larger right IPL.
Researchers found that chronic alcohol abuse in late adulthood damages Purkinje neurons by reducing message traffic between neurons, but the damage is mostly reversible. The study also suggests a connection between alcohol-induced brain changes and abnormal movements seen in alcoholics, such as unsteady gait and tremors.
For the first time, researchers have produced three-dimensional images of Alzheimer's disease plaques. The milestone was made possible by combining high-resolution magnetic resonance microscopy with powerful computers. The technique allows for non-invasive detection and study of plaque development in human and animal brain tissue.
Researchers at UCSF have identified a new chemical pathway in the brain involved in regulating mood, which may improve treatment for depression. The study found that popular antidepressants like Prozac and Zoloft increase the synthesis of a key neurosteroid, potentially providing a new target for mood-regulating drugs.
Researchers have found that a biochemical storm triggered by traumatic brain injury can continue for at least a month, suggesting the need for extended treatment. This discovery challenges current thinking on treatment windows and highlights the importance of understanding the complex interactions between calpains and brain tissue damage.
Researchers discover that older adults' brains reorganize themselves to recall visual information, bypassing damaged neural circuits. This adaptation allows them to maintain relatively good memory function despite aging, according to a new study published in Current Biology.
Researchers found that adult monkeys have new neurons added to their cerebral cortex, reversing a dogma nearly a century old. This discovery suggests new ways of explaining how the mind accomplishes basic functions, such as problem-solving and learning.
A new study by University of Washington researchers reveals that dyslexic children use significantly more brain area and energy while performing simple language tasks. The findings provide new evidence that dyslexia is a brain-based disorder and shed light on its developmental mechanisms.
A groundbreaking study reveals differences in the human brain's neural architecture compared to apes and monkeys. Researchers found a uniquely human feature in the magnocellular pathway of the primary visual cortex, which may help understand diseases like dyslexia.
Scientists at OHSU have discovered a mechanism in the brain that controls weight, named the adipostat, which acts as a fat thermostat. The discovery could lead to medications that help regulate patient weight and prevent excessive caloric intake.
Researchers at the University of Illinois have discovered that Fragile X syndrome affects dendritic spine development in the brain, leading to impaired protein synthesis and maturation. This process is fundamental to normal brain development and may hold clues to understanding the cause of mental impairment.
Researchers developed a technique to visualize nerve fiber bundles in the living human brain, providing detailed maps of connections between different areas. This study may lead to improvements in brain surgery, diagnosis, and understanding of neurological diseases, such as schizophrenia.
Researchers have correctly predicted dyslexia in 8-year-olds from brain waves just hours after birth, suggesting earlier detection could reduce reading problems. The study suggests selective damage to nerves in the fetal brain may cause dyslexia and that early intervention could be beneficial.
Researchers developed a new imaging technique to identify abnormal blood vessels in the brain, improving diagnosis and treatment of related conditions. The 'high resolution BOLD venography' method revealed detailed information on blood vessel malformations in nine out of ten patients.
A study found that higher education levels are associated with more severe brain shrinkage in older adults, yet this does not lead to significant memory loss or cognitive impairment. The 'reserve hypothesis' suggests that education provides a protective effect against age-related mental decline.