Brain

COLUMBIA, Mo. -- A team of scientists from the University of Missouri created a genetically modified mouse that mimics key features of Charcot-Marie-Tooth disease, an inherited neuromuscular disease affecting approximately 150,000 people in the United States.

NEW YORK (April 17, 2012) — Sixty percent of Wikipedia articles about companies contain factual errors, according to research published today in the Public Relations Society of America's (PRSA) scholarly publication, Public Relations Journal. Findings from the research will help establish a baseline of understanding for how public relations professionals work with Wikipedia editors to achieve accuracy in their clients' entries.

A new brain cancer vaccine tailored to individual patients by using material from their own tumors has proven effective in a multicenter phase 2 clinical trial at extending their lives by several months or longer. The patients suffered from recurrent glioblastoma multiforme—which kills thousands of Americans every year.

Unlike women, men don't curb certain risk-taking behaviours when a baby is present, a new psychology study at the University of Warwick suggests.

Whereas women are significantly more cautious when they are partnered with small children in a gambling game measuring their attitude to risk, men don't substantially alter their willingness to take a chance.

CHICAGO --- A Northwestern Medicine scientist has developed the first blood test to diagnose major depression in teens, a breakthrough approach that allows an objective diagnosis by measuring a specific set of genetic markers found in a patient's blood.

The current method of diagnosing depression is subjective. It relies on the patient's ability to recount his symptoms and the physician's ability and training to interpret them.

Orangutans may be smarter than previously thought if a new study into the sophisticated way they build nests is any indication.

Scientists at The University of Manchester spent a year observing and filming (video footage available) orangutans at a research facility in Indonesia and found they apparently possess complex knowledge of mechanical design and material properties.

COLUMBIA, Mo. – Tipping back one too many cocktails during an individual's early 20s doesn't correlate to a personal sense of immaturity; however if this habit doesn't stop as they reach age 30, young adults can feel psychologically underdeveloped, according to a University of Missouri study. Helping young adults acknowledge their mental impulse to "sober up" as they mature can improve substance abuse intervention programs.

COLUMBUS, Ohio – A small change in how teachers and parents read aloud to preschoolers may provide a big boost to their reading skills later on, a new study found.

That small change involves making specific references to print in books while reading to children – such as pointing out letters and words on the pages, showing capital letters, and showing how you read from left to right and top to bottom on the page.

A new study shows that low-income preschoolers who are at risk for developing reading problems can improve their reading skills if they're read to by teachers who identify the letter, track the shape of the letters, and discuss the words formed by those letters.

The study was carried out by researchers at the Ohio State University, the University of Virginia, and the University of Toledo. It appears in the journal Child Development.

We know that children who attend formal preschool programs in industrialized nations benefit in many ways. But what about the impact of similar programs in developing countries? A new longitudinal study carried out in Cambodia has found that some types of preschool are better than others, but any type is better than none at all.

The study was done by researchers at the University of Hong Kong, Universiti Brunei Darussalam, Beijing Normal University, Cornell University, and California Polytechnic State University. It is published in the journal Child Development.

Youths from African American, Native American, and Latino backgrounds are underrepresented in the fields of science, technology, engineering, and math (known as STEM subjects). Although having a mentor of the same ethnicity is widely seen as one way to engage these youths in STEM subjects, no study has asked these young people if they consider having a mentor who shares their background to be important. Now a new study of African American and Latino youths has found that having a "matched" mentor does matter, but only if having such a mentor is considered important by the adolescent.

VANCOUVER -- An Indiana University study that analyzed differences in practices between faculty at historically black colleges and universities (HBCUs) and predominantly white institutions (PWIs) found that faculty members at HBCUs were more likely to engage students in certain "educationally purposeful" activities both in and out of the classroom.

Depressed mothers are more likely to needlessly wake up their infants at night than mothers who are not depressed, according to Penn State researchers.

Adolescents who misuse alcohol and other drugs to the point where they need treatment must contend with costly and limited options for youth-specific care, as well as high relapse rates following treatment. Mutual-help groups such as Alcoholics Anonymous (AA) and Narcotics Anonymous (NA) are widely available but little research has addressed their benefits for adolescents. An assessment of 12-step meetings and recommended activities has found that attendance, participation, and finding a sponsor promote greater abstinence among adolescents.

Drinking during adolescence has both short- and long-term negative health consequences. Prior research has shown that peer influence is one of the most important predictors of alcohol use in adolescence. This study used a high-school chat session to examine peer influence on adolescent drinking, finding that anti-alcohol norms seemed more influential than pro-alcohol norms, and that adolescents were more influenced by their high-status than low-status peers.