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ScienceDaily: Nyt om Mind & Brain

Udgiv indhold ScienceDailyMind & Brain News
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: 19 hours 11 min siden

Innovation improves drowsy driver detection

ons, 04/23/2014 - 22:09
A new way to detect when drivers are about to nod off behind the wheel has been developed. "Video-based systems that use cameras to detect when a car is drifting out of its lane are cumbersome and expensive. They don't work well on snow-covered or curvy roads, in darkness or when lane markers are faded or missing. Our invention provides an inexpensive and user-friendly technology that overcomes these limitations and can help catch fatigue earlier, well before accidents are likely to happen," said a developer of the device.
Kategorier: Hjernen

Cyber buddy is better than 'no buddy'

ons, 04/23/2014 - 20:10
A researcher is looking to give exercise enthusiasts the extra nudge they need during a workout, and her latest research shows that a cyber buddy can help. The study is the first to indicate that although a human partner is still a better motivator during exercise, a software-generated partner also can be effective.
Kategorier: Hjernen

Finding safe drugs to treat neurodegenerative diseases

ons, 04/23/2014 - 19:30
'Mutant' protein clusters, long blamed for the progression of Huntington's and other neurodegenerative diseases, have been the primary focus of therapies in development by pharmaceutical companies. But according to new research, these drugs may not only be ineffective -- they may pose a serious threat to patients.
Kategorier: Hjernen

Hearing quality restored with bionic ear technology used for gene therapy: Re-growing auditory nerves

ons, 04/23/2014 - 19:30
Researchers have for the first time used electrical pulses delivered from a cochlear implant to deliver gene therapy, thereby successfully regrowing auditory nerves. The research also heralds a possible new way of treating a range of neurological disorders, including Parkinson's disease, and psychiatric conditions such as depression through this novel way of delivering gene therapy.
Kategorier: Hjernen

Novel compound halts cocaine addiction, relapse behaviors

ons, 04/23/2014 - 18:26
A novel compound that targets an important brain receptor has a dramatic effect against a host of cocaine addiction behaviors, including relapse behavior, an animal study has found. The research provides strong evidence that this may be a novel lead compound for treating cocaine addiction, for which no effective medications exist.
Kategorier: Hjernen

Some astronauts at risk for cognitive impairment, animal studies suggest

ons, 04/23/2014 - 18:24
Rats exposed to high-energy particles, simulating conditions astronauts would face on a long-term deep space mission, show lapses in attention and slower reaction times, even when the radiation exposure is in extremely low dose ranges, new research shows. The cognitive impairments — which affected a large subset, but far from all, of the animals — appear to be linked to protein changes in the brain, the scientists say.
Kategorier: Hjernen

Airport security-style technology could help doctors decide on stroke treatment

ons, 04/23/2014 - 16:15
A new computer program could help doctors predict which patients might suffer potentially fatal side-effects from a key stroke treatment. The program assesses brain scans using pattern recognition software similar to that used in airport security and passport control. Currently, stroke affects over 15 million people each year worldwide. Ischemic strokes are the most common and these occur when small clots interrupt the blood supply to the brain.
Kategorier: Hjernen

Fiction prepares us for a world changed by global warming

ons, 04/23/2014 - 15:27
Climate fiction, or simply cli-fi, is a newly coined term for novels and films which focus on the consequences of global warming. New research shows how these fictions serve as a mental laboratory that allows us to simulate the potential consequences of climate change and imagine other living conditions.
Kategorier: Hjernen

Legalizing medical marijuana doesn't increase use among adolescents, study says

ons, 04/23/2014 - 15:27
Parents and physicians concerned about an increase in adolescents' marijuana use following the legalization of medical marijuana can breathe a sigh of relief. According to a new study that compared 20 years worth of data from states with and without medical marijuana laws, legalizing the drug did not lead to increased use among adolescents.
Kategorier: Hjernen

Male-biased tweeting: Gender differences in the use of Twitter

ons, 04/23/2014 - 15:27
Today women take an active part in public life. Without a doubt, they also converse with other women. In fact, they even talk to each other about other things besides men. As banal as it sounds, this is far from being the norm in Hollywood movies. The same goes for Twitter, as a new study shows.
Kategorier: Hjernen

Physical activity keeps hippocampus healthy in people at risk for Alzheimer's disease

ons, 04/23/2014 - 15:27
Moderate physical activity may preserve the hippocampus -- the brain region responsible for memory and spatial orientation that is attacked first in Alzheimer's disease, a study of older adults at increased risk for Alzheimer's disease shows. It is the first evidence that physical activity may protect against cognitive decline and the onset of dementia symptoms in those who carry the genetic marker for Alzheimer's.
Kategorier: Hjernen

Toward unraveling the Alzheimer's mystery: New step points to proteins

ons, 04/23/2014 - 15:21
Getting to the bottom of Alzheimer's disease has been a rapidly evolving pursuit with many twists, turns and controversies. In the latest crook in the research road, scientists have found a new insight into the interaction between proteins associated with the disease. The report could have important implications for developing novel treatments.
Kategorier: Hjernen

ADHD drug may help preserve self-control resources

ons, 04/23/2014 - 15:21
Methylphenidate, also known as Ritalin, may prevent the depletion of self-control, according to research. Self-control can be difficult -- sticking with a diet or trying to focus attention on a boring textbook are hard things to do. Considerable research suggests one potential explanation for this difficulty: Exerting self-control for a long period seems to "deplete" our ability to exert self-control effectively on subsequent tasks.
Kategorier: Hjernen

Picture books aren't just fun: Children learn sophisticated animal facts when parent read them

ons, 04/23/2014 - 15:18
Children hear as much sophisticated information about animals when parents read picture book stories about animals as when they read flashcard-type animal vocabulary books, according to a new study. "Children do learn a lot when parents read books with them and many parents read to their children several times each week," said one researcher. "So, conducting studies using picture books and storybooks has important implications for understanding how children really learn in their daily lives."
Kategorier: Hjernen

Researchers compare hip width and sexual behavior

ons, 04/23/2014 - 15:17
Hip width and risk of birth-related trauma may play a role in a woman's decision to have sex. Women who were more inclined to have one-night stands had wider hips, reveals a study into how a woman's build influences her sexual behavior. Results of the study show that the number of sexual partners a woman had is largely driven by one-night stand behavior. This, in turn, correlates with a woman's hip width and not waist-to-hip ratio. Overall, women in this study with hips wider than 14.2 inches had more sexual partners and more one-night stands than women with hips under 12.2 inches wide.
Kategorier: Hjernen

Loss of memory in Alzheimer's mice models reversed through gene therapy

ons, 04/23/2014 - 15:17
Alzheimer's disease is the most common cause of dementia and affects some 400,000 people in Spain alone. However, no effective cure has yet been found. One of the reasons for this is the lack of knowledge on the cellular mechanisms which cause alterations in nerve transmissions and the loss of memory in the initial stages of the disease. Researchers have now discovered the cellular mechanism involved in memory consolidation and were able to develop a gene therapy which reverses the loss of memory in mice models with initial stages of Alzheimer's disease.
Kategorier: Hjernen

Brain circuits involved in emotion discovered by neuroscientists

ons, 04/23/2014 - 01:23
A brain pathway that underlies the emotional behaviors critical for survival have been discovered by neuroscientists. The team has identified a chain of neural connections which links central survival circuits to the spinal cord, causing the body to freeze when experiencing fear. Understanding how these central neural pathways work is a fundamental step towards developing effective treatments for emotional disorders such as anxiety, panic attacks and phobias.
Kategorier: Hjernen

Effectiveness of medications for treating epileptic seizures in children examined

tir, 04/22/2014 - 21:23
Although some studies have suggested that the drug lorazepam may be more effective or safer than the drug diazepam in treating a type of epileptic seizures among children, a randomized trial finds that lorazepam is not better at stopping seizures compared to diazepam. The researchers add that future trials should consider newer medications and novel interventions targeting those at highest risk for medication failure or respiratory depression.
Kategorier: Hjernen

Specialized ambulance improves treatment time for stroke

tir, 04/22/2014 - 21:23
Using an ambulance that included a computed tomography scanner, point-of-care laboratory, telemedicine connection and a specialized prehospital stroke team resulted in decreased time to treatment for ischemic stroke, according to a study. "Our study showed that the ambulance-based thrombolysis was safe, reduced alarm-to-treatment time, and increased thrombolysis rates," the researchers write. "Further studies are needed to assess the effects on clinical outcomes."
Kategorier: Hjernen

Patient preferences for emergency treatment of stroke examined in new study

tir, 04/22/2014 - 21:23
The majority of adults surveyed in new research indicated they would want administration of clot-dissolving medications if incapacitated by a stroke, a finding that supports clinicians' use of this treatment if patient surrogates are not available to provide consent. "When an incapacitated older patient's treatment preferences are unknown and surrogate decision makers are unavailable, there are empirical grounds for presuming individual consent to thrombolysis for stroke," the authors write.
Kategorier: Hjernen