Brain

Infants born prematurely are at risk for injuries to the white and gray matter of the brain that affect cortical development and neural connectivity. Certain forms of these injuries can be detected in the neonatal period using ultrasound, according to Columbia University Medical Center researchers.

Approximately five to ten percent of patients with primary or metastatic cancer suffer from devastating neurological complications such as headaches, seizures, confusion, difficulty swallowing and visual disturbances. These deficits are caused by a life-threatening form of brain invasion from cancer called neoplastic meningitis.

PROVIDENCE, R.I. [Brown University] — Women who are clinically depressed at the time they enter drug court have a substantially higher risk of using crack cocaine within four months, according to a new study. Because current but not past depression was associated with a higher risk of use, the study published in the journal Addiction suggests that addressing depression could reduce the number of women who fail to beat crack addiction in drug court.

WASHINGTON – Self-esteem increases during adolescence, then slows in young adulthood, but contrary to popular belief, there is no significant difference between men's and women's self-esteem during either of those life phases, according to research published by the American Psychological Association.

Milan, Italy, July 14, 2011 – Brain damage can cause significant changes in behaviour, such as loss of cognitive skills, but also reveals much about how the nervous system deals with consciousness. New findings reported in the July 2011 issue of Elsevier's Cortex demonstrate how the unconscious brain continues to process information even when the conscious brain is incapacitated.

Philadelphia, PA, 14 July, 2011 - Whether we choose to accept or fight it, the fact is that we will all age, but will we do so successfully? Aging successfully has been linked with the "positivity effect", a biased tendency towards and preference for positive, emotionally gratifying experiences. New research published in Biological Psychiatry now explains how and when this effect works in the brain.

Two years ago, researchers at UCLA found that specific regions in the brains of long-term meditators were larger and had more gray matter than the brains of individuals in a control group. This suggested that meditation may indeed be good for all of us since, alas, our brains shrink naturally with age.

Researchers at the Institut de recherches cliniques de Montréal (IRCM) are among the many scientists around the world trying to unearth our nervous system's countless mysteries. Dr. Artur Kania, Director of the IRCM's Neural Circuit Development research unit, and a postdoctoral fellow in his laboratory, Dr. Tzu-Jen Kao, recently uncovered a new piece of the puzzle.

Research conducted by Maria Ercsey-Ravasz and Zoltan Toroczkai of the University of Notre Dame's Interdisciplinary Center for Network Science and Applications (iCeNSA), along with the Department of Physics and a group of neuroanatomists in France, has revealed previously unknown information about the primate brain.

EVANSTON, Ill. --- So much has changed since 1963, when Betty Friedan's influential "The Feminine Mystique" provoked a national discussion about the deep dissatisfaction women were feeling about the limitations of their lives. Many women came to believe that discrimination limited their opportunities, especially in relation to leadership roles.

Scientists at the University of Washington (UW) in Seattle have determined the atomic architecture of a sodium channel. The achievement opens new possibilities for molecular medicine researchers around the world in designing better drugs for pain, epilepsy, and heart rhythm disturbances.

Irvine, Calif., July 13, 2011 — Human neural stem cells are capable of helping people regain learning and memory abilities lost due to radiation treatment for brain tumors, a UC Irvine study suggests.

Research with rats found that stem cells transplanted two days after cranial irradiation restored cognitive function, as measured in one- and four-month assessments. In contrast, irradiated rats not treated with stem cells showed no cognitive improvement.

Scientists have known for some time that the hormone leptin acts in the brain to prevent obesity, but the specific underlying neurocircuitry has remained a mystery. Now, new research published by Cell Press in the July 14 issue of the journal Neuron reveals neurobiological mechanisms that may underlie the antiobesity effects of leptin.

A breakthrough in sensing at Rice University could make finding signs of Alzheimer's disease nearly as simple as switching on a light.

The technique reported in the Journal of the American Chemical Society should help researchers design better medications to treat the devastating disease.

CLEMSON, S.C. — Clemson University researchers, working with simulation technology company DriveSafety, have developed a new driving simulator designed for patient rehabilitation that now is being used at 11 Army, Navy and Veterans Affairs facilities. The program recently expanded to Europe with the addition of a driving simulator at Charité Hospital in Berlin, Germany.