Brain | Page 819 | Science Codex

Folic acid supplements early in pregnancy may reduce child's risk of autism by 40 percent

Prenatal folic acid supplements appear to reduce the risk for autistic spectrum disorders, according to a study published today (February 13) in the Journal of the American Medical Association (JAMA).

The Centers for Disease Control and Prevention estimate that about 1 in 88 children in the U.S. have been identified with an Autism Spectrum Disorder (ASD). ASDs are amongst the most heritable of mental disorders, but little is known about how the disorder develops. Consequently, methods for diagnosis, prevention, and treatment are limited.

Lower autism risk with folic acid supplements in pregnancy

Women who took folic acid supplements in early pregnancy almost halved the risk of having a child with autism. Beginning to take folic acid supplements later in pregnancy did not reduce the risk. This is shown in new findings from the ABC Study and Norwegian Mother and Child Cohort Study published in the Journal of The American Medical Association (JAMA).

Explosive breakthrough in research on molecular recognition

Edmonton—Ever wonder how sometimes people still get through security with explosives on their person? Research done in the University of Alberta's Department of Chemical and Materials Engineering has revealed a new way to better detect these molecules associated with explosive mixtures.

'Get off my lawn:' Song sparrows escalate territorial threats - with video

Territorial song sparrows use increasingly threatening signals to ward off trespassing rivals. First an early warning that matches the intruder's song, then wing waving – a bird's version of "flipping the bird" – as the dispute heats up, and finally, if all other signals have failed, attack.

This hierarchical warning scheme, discovered by researchers at the University of Washington, adds nuance to a communication system that has been long-used as a model to study how people use and learn language

Identification of abnormal protein may help diagnose, treat ALS and frontotemporal dementia

Amyotrophic lateral sclerosis (ALS), or Lou Gehrig's disease, and frontotemporal dementia (FTD) are devastating neurodegenerative diseases with no effective treatment. Researchers are beginning to recognize ALS and FTD as part of a spectrum disorder with overlapping symptoms. Now investigators reporting online February 12 in the Cell Press journal Neuron have discovered an abnormal protein that first forms as a result of genetic abnormalities and later builds up in the brains of many patients with either disease.

Neuroprosthesis gives rats the ability to 'touch' infrared light

Researchers have given rats the ability to "touch" infrared light, normally invisible to them, by fitting them with an infrared detector wired to microscopic electrodes implanted in the part of the mammalian brain that processes tactile information. The achievement represents the first time a brain-machine interface has augmented a sense in adult animals, said Duke University neurobiologist Miguel Nicolelis, who led the research team.

Scopolamine: An old drug with new psychiatric applications

Philadelphia, PA, February 12, 2013 – Scopolamine is an anticholinergic drug with many uses. For example, it prevents nausea, vomiting, and motion sickness.

However, scopolamine is re-emerging as an antidepressant, with recent studies showing that scopolamine can rapidly improve mood in depressed patients. In addition, in a new study published in Biological Psychiatry this month by Dr. Moriel Zelikowsky and colleagues at the University of California, Los Angeles, it may also be a possible treatment for anxiety disorders.

Scientists create automated 'time machine' to reconstruct ancient languages

Ancient languages hold a treasure trove of information about the culture, politics and commerce of millennia past. Yet, reconstructing them to reveal clues into human history can require decades of painstaking work. Now, scientists at the University of California, Berkeley, have created an automated "time machine," of sorts, that will greatly accelerate and improve the process of reconstructing hundreds of ancestral languages.

Young children may go above and beyond when helping adults

WASHINGTON – Even very young children understand that adults don't always know best. When it comes to helping, 3-year-olds may ignore an adult's specific request for an unhelpful item and go out of their way to bring something more useful, according to new research published by the American Psychological Association.

Early music lessons boost brain development

Montreal, February 12, 2013 – If you started piano lessons in grade one, or played the recorder in kindergarten, thank your parents and teachers. Those lessons you dreaded – or loved – helped develop your brain. The younger you started music lessons, the stronger the connections in your brain.

Scientists advance the art of magic with a study of Penn and Teller's 'cups and balls' illusion

Cognitive brain researchers have studied a magic trick filmed in magician duo Penn & Teller's theater in Las Vegas, to illuminate the neuroscience of illusion. Their results advance our understanding of how observers can be misdirected and will aid magicians as they work to improve their art.

Parents' praise predicts attitudes toward challenge 5 years later

Toddlers whose parents praised their efforts more than they praised them as individuals had a more positive approach to challenges five years later. That's the finding of a new longitudinal study that also found gender differences in the kind of praise that parents offer their children.

The study, by researchers at the University of Chicago and Stanford University, appears in the journal Child Development.

Teaching teens that people can change reduces aggression in school

Teenagers from all walks of life who believe people can't change react more aggressively to a peer conflict than those who think people can change. And teaching them that people have the potential to change can reduce these aggressive reactions.

Those are the findings of a new study published in the journal Child Development. The research was conducted at the University of Texas at Austin, Emory University, and Stanford University.

Vascular brain injury greater risk factor than amyloid plaques in cognitive aging

Vascular brain injury from conditions such as high blood pressure and stroke are greater risk factors for cognitive impairment among non-demented older people than is the deposition of the amyloid plaques in the brain that long have been implicated in conditions such as Alzheimer's disease, a study by researchers at the Alzheimer's Disease Research Center at UC Davis has found.

ADHD symptoms persist for most young children despite treatment

Nine out of 10 young children with moderate to severe attention-deficit hyperactivity disorder (ADHD) continue to experience serious, often severe symptoms and impairment long after their original diagnoses and, in many cases, despite treatment, according to a federally funded multi-center study led by investigators at Johns Hopkins Children's Center.