Brain

New research at Rutgers University may help shed light on how and why nervous system changes occur and what causes some people to suffer from life-threatening anxiety disorders while others are better able to cope.

Maureen Barr, a professor in the Department of Genetics, and a team of researchers, found that the architectural structure of the six sensory brain cells in the roundworm, responsible for receiving information, undergo major changes and become much more elaborate when the worm is put into an high stress environment.

EAST LANSING, Mich. — Children born with HIV can live longer and richer lives if their caregivers receive training in ways to enhance the children's development, according to research led by Michigan State University.

The program also reduces depression in the caregivers which, in most cases, are the children's HIV-infected mothers, MSU researcher Michael Boivin and colleagues report in The Journal of Pediatrics.

New research suggests children don't understand competitive behaviour until around the age of four.

A team of researchers from the University of Warwick and University of Salzburg found most children under 4 did not have a developed understanding of other people's perspectives — specifically, of the fact that what someone intentionally does depends on their take on the situation.

Recently, the importance of the neurovascular unit, which is comprised of neurons, endothelial cells and astrocytes, has received great attention in the field of stroke, because stroke affects not only neurons, but also astrocytes and microvessels. Within the neurovascular unit, endothelial cells are critical for maintaining normal hemodynamic and metabolic homeostasis. Vascular damage during ischemia often leads to the disruption of the blood-brain barrier and dysregulation of vascular tonus, eventually causing substantial cell death.

In the field of developmental neurobiology, accurate and ordered regulation of the cell cycle and apoptosis are crucial factors contributing to the normal formation of the neural tube. Preliminary studies by Xinjun Li and colleagues from Deyang People's Hospital have identified several genes involved in the development of neural tube defects. Their recent study published in the Neural Regeneration Research (Vol. 8, No. 20, 2013) established a model of developmental neural tube defects by administration of retinoic acid to pregnant rats.

To stop the progression of Alzheimer's disease in the early stage, it is necessary to identify new therapeutic targets. Prof. Yunpeng Cao and team from the First Affiliated Hospital of China Medical University examined striatal-enriched phosphatase 61 expression in the brain tissues of Alzheimer's disease rats using in vivo and in vitro models, and analyzed the molecular mechanism by which striatal-enriched phosphatase 61 regulates N-methyl-D- aspartate receptor 2B transport.

Researchers at the University of Adelaide have discovered a novel and complex visual circuit in a dragonfly's brain that could one day help to improve vision systems for robots.

Antivirus software running on your computer has one big weak point - if a new virus is released before the antivirus provider knows about it or before the next scheduled antivirus software update, your system can be infected. Such zero-day infections are common.

Philadelphia, PA, August 15, 2013 – Difficulty in registering and responding to the facial expressions of other people is a hallmark of autism spectrum disorder (ASD). Relatedly, functional imaging studies have shown that individuals with ASD display altered brain activations when processing facial images.

CHICAGO --- Exercise is a common prescription for insomnia. But spending 45 minutes on the treadmill one day won't translate into better sleep that night, according to new Northwestern Medicine® research.

"If you have insomnia you won't exercise yourself into sleep right away," said lead study author Kelly Glazer Baron, a clinical psychologist and director of the behavioral sleep program at Northwestern University Feinberg School of Medicine. "It's a long-term relationship. You have to keep at it and not get discouraged."

Hamilton, ON (August 14, 2013) – There is no evidence that impaired blood flow or blockage in the veins of the neck or head is involved in multiple sclerosis, says a McMaster University study.

The research, published online by PLOS ONE today, found no evidence of abnormalities in the internal jugular or vertebral veins or in the deep cerebral veins of any of 100 patients with multiple sclerosis (MS) compared with 100 people who had no history of any neurological condition.

Researchers from King's College London and the University of Nottingham have identified neuroimaging markers in the brain which could help predict whether people with psychosis respond to antipsychotic medications or not.

MADISON, Wis. — Children who are exposed to lead are nearly three times more likely to be suspended from school by the 4th grade than children who are not exposed, according to a new University of Wisconsin-Madison study funded jointly by the Robert Wood Johnson Foundation and the Wisconsin Partnership Program Education and Research Committee.

University of Arizona scientists have discovered an unknown mechanism that establishes polarity in developing nerve cells. Understanding how nerve cells make connections is an important step in developing cures for nerve damage resulting from spinal cord injuries or neurodegenerative diseases such as Alzheimer's.

Medical testimonials on the Internet and elsewhere present powerful personal stories and useful information, but they can also be dangerous to your health if distracting, irrelevant information leads to inappropriate treatment decisions, say researchers at the University of North Carolina at Chapel Hill.