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ScienceDaily: Nyt om Mind & Brain

Udgiv indhold Mind & Brain News -- ScienceDaily
Learn about migraine headache symptoms and treatment. Read the latest research on the various types of headaches such as migraine headaches, sinus headaches, and cluster headaches, among others. Find out the causes of headaches and how to get relief.
Opdateret: 3 hours 14 min siden

See-through, one-atom-thick, carbon electrodes powerful tool to study brain disorders

man, 10/20/2014 - 19:15
A graphene, one-atom-thick microelectrode now solves a major problem for investigators looking at brain circuitry. Pinning down the details of how individual neural circuits operate in epilepsy and other brain disorders requires real-time observation of their locations, firing patterns, and other factors.
Kategorier: Hjernen

Sport in old age can stimulate brain fitness, but effect decreases with advancing age

man, 10/20/2014 - 18:49
Physical exercise in old age can improve brain perfusion as well as certain memory skills, say neuroscientists who studied men and women aged between 60 and 77. In younger individuals regular training on a treadmill tended to improve cerebral blood flow and visual memory. However, trial participants who were older than 70 years of age tended to show no benefit of exercise.
Kategorier: Hjernen

Brain activity provides evidence for internal 'calorie counter'

man, 10/20/2014 - 15:55
As you think about how a food will taste and whether it's nutritious, an internal calorie counter of sorts is also evaluating each food based on its caloric density, according to findings from a new neuroimaging study.
Kategorier: Hjernen

Fairness is in the brain, scientists say

man, 10/20/2014 - 15:53
Ever wondered how people figure out what is fair? Look to the brain for the answer. According to a new brain study, people appreciate fairness in much the same way as they appreciate money for themselves, and also that fairness is not necessarily that everybody gets the same income.
Kategorier: Hjernen

New antidepressant: Rapid agent restores pleasure-seeking ahead of other antidepressant action

man, 10/20/2014 - 15:50
A drug being studied as a fast-acting mood-lifter restored pleasure-seeking behavior independent of -- and ahead of -- its other antidepressant effects. Within 40 minutes after a single infusion of ketamine, treatment-resistant depressed bipolar disorder patients experienced a reversal of a key symptom -- loss of interest in pleasurable activities -- which lasted up to 14 days. Brain scans traced the agent's action to boosted activity in areas at the front and deep in the right hemisphere of the brain.
Kategorier: Hjernen

Digital native fallacy: Teachers still know better when it comes to using technology

man, 10/20/2014 - 15:49
A new study looks at how teachers and students use technology inside and outside the classroom. It turns out that members of today's younger Net Generation aren't more tech savvy than their teachers just because they were born into a world full of computers. In fact, if it weren't for the coaxing and support of their educators, many students would never use their electronic devices for more than playing games or listening to music, say experts.
Kategorier: Hjernen

Cold sores increase risk of dementia

man, 10/20/2014 - 15:49
Infection with herpes simplex virus increases the risk of Alzheimer's disease, researchers claim. "Our results clearly show that there is a link between infections of herpes simplex virus and the risk of developing Alzheimer's disease. This also means that we have new opportunities to develop treatment forms to stop the disease," says one of the researchers behind the study.
Kategorier: Hjernen

Head injury causes immune system to attack brain, new study finds

man, 10/20/2014 - 14:04
Scientists have uncovered a surprising way to reduce the brain damage caused by head injuries -- stopping the body's immune system from killing brain cells. A new study showed that in experiments on mice, an immune-based treatment reduced the size of brain lesions. The authors suggest that if the findings apply to humans, this could help prevent brain damage from accidents, and protect players of contact sports like football, rugby and boxing.
Kategorier: Hjernen

Head Start program benefits parents

man, 10/20/2014 - 14:04
Head Start programs may help low-income parents improve their educational status, according to a new study. The study is one of the first to examine whether a child's participation in the federal program benefits mothers and fathers -- in particular parents' educational attainment and employment.
Kategorier: Hjernen

American Alzheimer's plan milestones must be strengthened to meet goal by 2025, experts say

man, 10/20/2014 - 14:03
The research milestones in the US Government's National Plan to Address Alzheimer's Disease must be broadened in scope, increased in scale, and adequately funded in order to successfully achieve this goal, a workgroup of nearly 40 Alzheimer's researchers and scientists says.
Kategorier: Hjernen

Aspirin shown to benefit schizophrenia treatment

man, 10/20/2014 - 14:01
Some anti-inflammatory medicines, such as aspirin, estrogen, and Fluimucil, can improve the efficacy of existing schizophrenia treatments, new research suggests. Research has shown that the immune system is linked to certain psychiatric disorders, such as schizophrenia and bipolar disorder. Research has shown that "antioxidants and anti-inflammatory drugs could not only reduce symptoms associated with the disorders but also prevent the appearance of neurobiological abnormalities and transition to psychosis if given early during brain development," experts say.
Kategorier: Hjernen

Fish intake associated with boost to antidepressant response

man, 10/20/2014 - 14:01
Up to half of patients who suffer from major depression do not respond to treatment with Selective Serotonin Reuptake Inhibitors. Now a group of researchers has carried out a study that shows that increasing fatty fish intake appears to increase the response rate in patients who do not respond to antidepressants.
Kategorier: Hjernen

Panic attacks associated with fear of bright daylight

man, 10/20/2014 - 14:01
Fear of bright daylight is associated with panic disorder, according to new research. Panic disorder is where a person has recurring and regular panic attacks. It appears to be about twice as common in women as it is in men. Previous studies have shown that there is a strong seasonal component in panic disorder, but this is the first study to look specifically at panic disorder patients' reactions to light.
Kategorier: Hjernen

New test to help brain injury victims recover

man, 10/20/2014 - 14:00
A new assessment can help patients suffering from traumatic brain injury, aneurism, dementia, stroke and more between ages 18-74, experts say. The test is suitable for measuring concentration, memory retention, motor performance, language skills and spatial awareness in patients.
Kategorier: Hjernen

Irritable bowel syndrome: Males report more social stress than females

man, 10/20/2014 - 13:51
One of the few studies to examine gender differences among patients with irritable bowel syndrome (IBS) has found that males with the condition experience more interpersonal difficulties than do females with the condition. “Our findings underscore the significance of studying gender-based differences in how people experience the same disease or condition,” says one expert.
Kategorier: Hjernen

Highly Connected CEOs More Likely to Broker Mergers and Acquisitions That Harm Firms

man, 10/20/2014 - 13:51
A new study shows that CEOs with extensive social connections initiate mergers and acquisitions more frequently, and these deals result in greater financial losses for both the acquiring firm and the combined entity.
Kategorier: Hjernen

Research reveals likelihood, onset of multiple sclerosis diagnosis among patients with inflammatory eye disease

søn, 10/19/2014 - 20:15
The results of the largest retrospective study of multiple sclerosis (MS) in uveitis patients has revealed that nearly 60 percent of patients with both diseases were diagnosed with each within a five-year span. While it has long been known that there is an association between the eye condition and MS, this is the first study to provide a detailed description of the relative onset of uveitis and MS and to calculate the likelihood of an MS diagnosis among uveitis patients.
Kategorier: Hjernen

Gene duplications associated with autism evolved recently in human history

søn, 10/19/2014 - 14:46
Human geneticists have discovered that a region of the genome associated with autism contains genetic variation that evolved in the last 250,000 years, after the divergence of humans from ancient hominids, and likely plays an important role in disease.
Kategorier: Hjernen

Women more likely to develop anxiety and depression after heart attack

søn, 10/19/2014 - 14:46
Patients with depression are nearly 6 times more likely to die within 6 months after a heart attack than those without depression. The increased risk of death in patients with depression persists up to 18 months after the heart attack. But despite the fact that post-heart-attack depression is common and burdensome, the condition remains under-recognized and under-treated, scientists say.
Kategorier: Hjernen

I have anxiety, why is my doctor prescribing an antipsychotic? New drug naming system unveiled

søn, 10/19/2014 - 14:45
What’s in a name? Doctors have found that the name of the drug you are prescribed significantly influences how the patient sees the treatment. Now in a significant shift, the world’s major psychiatry organizations are proposing to completely change the terminology of the drugs used in mental disorders shifting it from symptom based (e.g. antidepressant, antipsychotic etc.) to pharmacologically based (e.g. focusing on pharmacological target (serotonin, dopamine etc.) and the relevant mode of action). This will mean that patient will no longer have the confusion of being prescribed a drug for what appears to be an unrelated condition, but also means that drug names will be more understandable to doctors.
Kategorier: Hjernen