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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: 21 hours 29 min siden

Three-quarters of depressed cancer patients do not receive treatment for depression; new approach could transform care

tor, 08/28/2014 - 01:36
Three papers reveal that around three-quarters of cancer patients who have major depression are not currently receiving treatment for depression, and that a new integrated treatment program is strikingly more effective at reducing depression and improving quality of life than current care.
Kategorier: Hjernen

Inside the Teenage Brain: New Studies Explain Risky Behavior

tor, 08/28/2014 - 01:35
It’s common knowledge that teenage boys seem predisposed to risky behaviors. Now, a series of new studies is shedding light on specific brain mechanisms that help to explain what might be going on inside juvenile male brains.
Kategorier: Hjernen

Social class makes a difference in how children tackle classroom problems

ons, 08/27/2014 - 21:34
Social class can account for differences in how parents coach their children to manage classroom challenges, a study shows. Such differences can affect a child's education by reproducing inequalities in the classroom. With the widening gaps in educational outcomes between social classes, the researcher suggested that this study could help schools become more aware of these differences and make moves to reduce the inequalities.
Kategorier: Hjernen

First study of brain activation in MS using fNIRS

ons, 08/27/2014 - 20:17
Using functional near infrared spectroscopy, researchers showed differential brain activation patterns between people with multiple sclerosis (MS) and healthy controls. This is first MS study to examine brain activation using fNIRS during a cognitive task.
Kategorier: Hjernen

Stop and listen: Study shows how movement affects hearing

ons, 08/27/2014 - 19:17
When we want to listen carefully to someone, the first thing we do is stop talking. The second thing we do is stop moving altogether. The interplay between movement and hearing has a counterpart deep in the brain. A new study used optogenetics to reveal exactly how the motor cortex, which controls movement, can tweak the volume control in the auditory cortex, which interprets sound.
Kategorier: Hjernen

Self-deceived individuals deceive others better

ons, 08/27/2014 - 19:16
Over-confident people can fool others into believing they are more talented than they actually are, a study has found. These 'self-deceived' individuals could be more likely to get promotions and reach influential positions in banks and other organizations. And these people are more likely to overestimate other people's abilities and take greater risks, possibly creating problems for their organizations.
Kategorier: Hjernen

Orphaned children can do just as well in institutions, study concludes

ons, 08/27/2014 - 19:16
The removal of institutions or group homes will not lead to better child well-being and could even worsen outcomes for some orphaned and separated children, according to new findings from a three-year study across five low- and middle-income countries. Children in institutions are as healthy and, in some ways, healthier than those in family-based care, according to the study.
Kategorier: Hjernen

Stone-tipped spears lethal, may indicate early cognitive and social skills

ons, 08/27/2014 - 19:16
Attaching a stone tip on to a wooden spear shaft was a significant innovation for early modern humans living around 500,000 years ago. However, it was also a costly behavior in terms of time and effort to collect, prepare and assemble the spear. Researchers conducted controlled experiments to learn if there was a 'wounding' advantage between using a wooden spear or a stone-tipped spear.
Kategorier: Hjernen

Xenon exposure shown to erase traumatic memories

ons, 08/27/2014 - 19:16
Xenon gas, used in humans for anesthesia and diagnostic imaging, has the potential to be a treatment for post-traumatic stress disorder and other memory-related disorders, researchers report. "We know from previous research that each time an emotional memory is recalled, the brain actually restores it as if it were a new memory. With this knowledge, we decided to see whether we could alter the process by introducing xenon gas immediately after a fear memory was reactivated," explained an author.
Kategorier: Hjernen

Alcohol-dependence gene linked to neurotransmitter

ons, 08/27/2014 - 19:14
Scientists have solved the mystery of why a specific signaling pathway can be associated with alcohol dependence. The new research shows the gene, Nf1, regulates gamma-aminobutyric acid (GABA), a neurotransmitter that lowers anxiety and increases relaxation feelings.
Kategorier: Hjernen

emotional association of memories changed by researchers

ons, 08/27/2014 - 18:18
By manipulating neural circuits in the brain of mice, scientists have altered the emotional associations of specific memories. The research reveals that the connections between the part of the brain that stores contextual information about an experience and the part of the brain that stores the emotional memory of that experience are malleable.
Kategorier: Hjernen

Marijuana compound may offer treatment for Alzheimer's disease

ons, 08/27/2014 - 18:18
Extremely low levels of the compound in marijuana known as delta-9-tetrahydrocannabinol, or THC, may slow or halt the progression of Alzheimer's disease, a recent study from neuroscientists shows.
Kategorier: Hjernen

Neuroscientists reverse memories' emotional associations: Brain circuit that links feelings to memories manipulated

ons, 08/27/2014 - 18:16
Most memories have some kind of emotion associated with them: Recalling the week you just spent at the beach probably makes you feel happy, while reflecting on being bullied provokes more negative feelings. A new study from neuroscientists reveals the brain circuit that controls how memories become linked with positive or negative emotions.
Kategorier: Hjernen

Flexing the brain: Why learning tasks can be difficult

ons, 08/27/2014 - 18:16
Learning a new skill is easier when it is related to an ability we already have. For example, a trained pianist can learn a new melody easier than learning how to hit a tennis serve. Scientists have discovered a fundamental constraint in the brain that may explain why this happens.
Kategorier: Hjernen

Parents, listen next time your baby babbles

ons, 08/27/2014 - 17:26
Parents who try to understand their baby's babbling let their infants know they can communicate, which leads to children forming complex sounds and using language more quickly. The study's results showed infants whose mothers attended more closely to their babbling vocalized more complex sounds and develop language skills sooner.
Kategorier: Hjernen

Impact of cultural diversity in brain injury research

ons, 08/27/2014 - 17:26
The implications for cultural diversity and cultural competence in brain injury research and rehabilitation has been the focus of recent study. Risk for brain injury is higher among minorities, as is the likelihood for poorer outcomes. More research is needed to reduce health disparities and improve outcomes among minorities with brain injury, experts say.
Kategorier: Hjernen

Group identity emphasized more by those who just make the cut

ons, 08/27/2014 - 16:21
People and institutions who are marginal members of a high-status or well-esteemed group tend to emphasize their group membership more than those who are squarely entrenched members of the group, according to new research.
Kategorier: Hjernen

New study throws into question long-held belief about depression

ons, 08/27/2014 - 16:19
New evidence puts into doubt the long-standing belief that a deficiency in serotonin -- a chemical messenger in the brain -- plays a central role in depression. Scientists report that mice lacking the ability to make serotonin in their brains (and thus should have been 'depressed' by conventional wisdom) did not show depression-like symptoms.
Kategorier: Hjernen

Potential therapy for incurable Charcot-Marie-Tooth disease found

ons, 08/27/2014 - 16:19
A potential new treatment approach for hereditary neurological disorder, the incurable Charcot-Marie-Tooth disease, has been found by researchers. Patients with Charcot-Marie-Tooth disease type 1A harbour an extra copy of the PMP22 gene which leads to the overproduction of the peripheral myelin protein 22 (PMP22), a key component of myelin.
Kategorier: Hjernen

Student debt growing, number of university financial education programs still deficient

ons, 08/27/2014 - 16:18
A financial planner finds most universities are lacking a financial education program, and outlines in a new article the different types of successful programs and how to get started.
Kategorier: Hjernen