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Study finds positive link between perceptual difficulty and insular cortex activity

Study finds positive link between perceptual difficulty and insular cortex activity

As the difficulty of making a decision based on sensory evidence increases, activity in the brain's insular cortex also increases, according to researchers at Georgia State University. [More]
Rockefeller scientists develop new technique that captures detailed snapshot of brain activity

Rockefeller scientists develop new technique that captures detailed snapshot of brain activity

When it comes to measuring brain activity, scientists have tools that can take a precise look at a small slice of the brain (less than one cubic millimeter), or a blurred look at a larger area. [More]
Study reveals brain mechanism involved in switching between habitual behavior and decision-making

Study reveals brain mechanism involved in switching between habitual behavior and decision-making

Not all habits are bad. Some are even necessary. It's a good thing, for example, that we can find our way home on "autopilot" or wash our hands without having to ponder every step. But inability to switch from acting habitually to acting in a deliberate way can underlie addiction and obsessive compulsive disorders. [More]
New computational model simulates how neurons in visual cortex process sensory stimuli

New computational model simulates how neurons in visual cortex process sensory stimuli

At any given moment, the neuronal circuits in the brain receive and process sensory information that permits us to perceive and interact with the environment. Yet it remains unclear how the visual brain processes natural stimuli. [More]
New mice study unveils mystery of why chronic stress, depression can lead to bone loss

New mice study unveils mystery of why chronic stress, depression can lead to bone loss

A new study has helped to unveil the mystery of why chronic stress and depression can lead to bone loss and increase the risk of fractures. [More]
Women suffering from anorexia nervosa or obesity may respond differently to taste

Women suffering from anorexia nervosa or obesity may respond differently to taste

Researchers at the University of Colorado Anschutz Medical Campus have discovered that women suffering from anorexia nervosa and those who are obese respond differently to taste, a finding that could lead to new treatments for the eating disorders. [More]
Exercise may help reduce toxicity caused by glutamate build-up in the brain

Exercise may help reduce toxicity caused by glutamate build-up in the brain

In a new study published today in Applied Physiology, Nutrition, and Metabolism, scientists from the University of Guelph have found that exercise has the potential to decrease toxic build-up in the brain, reducing the severity of brain disorders such as Huntington's disease. [More]
Exposing headache sufferers to pure-wavelength green light can lessen severity of migraines

Exposing headache sufferers to pure-wavelength green light can lessen severity of migraines

Most migraine and post-traumatic headache sufferers find their headaches get worse in light, leading them to quit their most fundamental daily tasks and seek the comfort of darkness. [More]
Mouse models of Zika virus infection in pregnancy provide basis to develop vaccines, treatments

Mouse models of Zika virus infection in pregnancy provide basis to develop vaccines, treatments

Two mouse models of Zika virus infection in pregnancy have been developed by a team of researchers at Washington University School of Medicine in St. Louis. In them, the virus migrated from the pregnant mouse's bloodstream into the placenta, where it multiplied, then spread into the fetal circulation and infected the brains of the developing pups. [More]
Brazilian strain of Zika virus can cause severe birth defects

Brazilian strain of Zika virus can cause severe birth defects

Researchers at University of California San Diego School of Medicine, with colleagues in Brazil and Senegal, have described the first "direct experimental proof" that the Brazilian strain of Zika virus can actually cause severe birth defects. The findings are published in the May 11 online issue of Nature. [More]
Study explores neurological mechanisms in action during ketamine anesthesia

Study explores neurological mechanisms in action during ketamine anesthesia

It's a topic that has long captivated doctors, scientists and the public — what exactly happens in your brain when you're oblivious on the operating table? [More]
Mice study reveals signs of stress-related early maturation in vital brain region

Mice study reveals signs of stress-related early maturation in vital brain region

Intuition is all one needs to understand that stress in early childhood can create lifelong psychological troubles, but scientists have only begun to explain how those emerge in the brain. [More]
Researchers examine role of neural circuit in making decisions

Researchers examine role of neural circuit in making decisions

Choosing what shirt to buy, what to order for lunch or whether to go with the hearty red wine or the lighter white all involve assigning values to the options. A small brain structure plays a central role in the many decisions like this we make each day. But it hasn't been clear how a limited number of neurons in this small part of the brain can support an unlimited number of choices. [More]
Transcranial direct current stimulation proves effective for binge-eating disorder

Transcranial direct current stimulation proves effective for binge-eating disorder

Transcranial direct current stimulation, or tDCS, has proved effective for binge-eating disorder for the first time, according to researchers at the University of Alabama at Birmingham. [More]
Implantable brain device shows promising results in animal study

Implantable brain device shows promising results in animal study

An implantable brain device that literally melts away at a pre-determined rate minimizes injury to tissue normally associated with standard electrode implantation, according to research led by a team from the Perelman School of Medicine at the University of Pennsylvania. [More]
EPFL neuroscientists find that the brain can filter out cardiac sensations

EPFL neuroscientists find that the brain can filter out cardiac sensations

Our heart is constantly beating yet we normally do not feel it. It turns out that our brain is capable of filtering out the cardiac sensation so that it doesn't interfere with the brain's ability to perceive external sensations. For the first time, researchers from the Center for Neuroprosthetics at EPFL have identified this mechanism. They discovered that a certain region in the brain determines where internal and external sensations interact. Their work appears in the Journal of Neuroscience. [More]
Study provides new insights into how visual information transformed from retina to cortical representations

Study provides new insights into how visual information transformed from retina to cortical representations

Neurons in our brain do a remarkable job of translating sensory information into reliable representations of our world that are critical to effectively guide our behavior. The parts of the brain that are responsible for vision have long been center stage for scientists' efforts to understand the rules that neural circuits use to encode sensory information. [More]
Feeding breast milk during first month of life may spur brain growth in preterm infants

Feeding breast milk during first month of life may spur brain growth in preterm infants

Feeding premature babies mostly breast milk during the first month of life appears to spur more robust brain growth, compared with babies given little or no breast milk. [More]
Changes in the brain make people prone to alcoholism

Changes in the brain make people prone to alcoholism

The brain tissue of persons with alcohol dependence shows a variety of changes compared to non-alcoholic control persons. All alcoholics' brains share some characteristics, but some are exclusive to the brain tissue of anxiety-prone type 1 alcoholics or impulsive type 2 alcoholics, according to a recent study from the University of Eastern Finland. [More]
Disrupted memory pathways uncovered in epilepsy patients

Disrupted memory pathways uncovered in epilepsy patients

A study in rats, backed up by results in patients, has revealed how interictal epileptiform discharges may lead to memory impairments in patients with epilepsy. [More]
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