Brain

Eye movements and sight distance reveal how drivers negotiate winding roads

Rockville, MD — It is well-documented that when negotiating winding roads, drivers tend to look at a specific, well-defined point on the lane marking — referred to as the tangent point. New research finds that the further drivers can look ahead, generally in left-hand curves, wide curves and when leaving a curve, the less they have to look at the tangent point.

Therapist competence matters -- and more for some patients than others

COLUMBUS, Ohio – While studies have shown that cognitive therapy is an effective treatment for depression, it has still not been clear the role therapists' training and expertise plays in making treatment successful.

A new study finds that depressed patients show more symptom improvement when their therapists more competently follow the guidelines for delivering cognitive therapy.

No wonder romance is confusing - brain areas for reward, motivation and addiction activated by rejection

Bethesda, Md. – The pain and anguish of rejection by a romantic partner may be the result of activity in parts of the brain associated with motivation, reward and addiction cravings, according to a study published in the July issue of the Journal of Neurophysiology (http://jn.physiology.org/).

SIRT1 protein must exist in specific brain cells to prevent diet-induced obesity

DALLAS – July 6, 2010 –A protein found in cells throughout the body must be present in a specific set of neurons in the brain to prevent weight gain after chronic feeding on high-calorie meals, new findings from UT Southwestern Medical Center researchers suggest.

Brain chemical boosts body heat, aids in calorie burn, UT Southwestern research suggests

DALLAS – July 7, 2010 – New findings by UT Southwestern Medical Center researchers suggest that an enzyme in the brain known as PI3 kinase might control the increased generation of body heat that helps burn off excess calories after eating a high-fat meal.

Searching for causes of neural disconnection in schizophrenia

Philadelphia, 6 July, 2010 - Dendritic spines act as hubs for communication between nerve cells. Reductions in spines may contribute to a lack of coordination in activity between brain regions. This structural abnormality is particularly relevant in schizophrenia, where pyramidal neurons located in layer 3, the principal cell type receiving communication from other brain regions, have fewer dendritic spines.

Fetal X-ray exposure interferes with memory in adulthood

Philadelphia, 5 July, 2010 - Learning and memory impairments are important contributors to the disability associated with schizophrenia. These functional impairments emerge long before the onset of other symptoms associated with schizophrenia, suggesting that they are a consequence of a disturbance in brain development.

Rhythm of life: Music shows potential in stroke rehabilitation

Music therapy provided by trained music therapists may help to improve movement in stroke patients, according to a new Cochrane Systematic Review. A few small trials also suggest a wider role for music in recovery from brain injury.

Neural stem cells attack glioblastoma cells

In their latest research, scientists of the Max Delbrück Center for Molecular Medicine (MDC) Berlin-Buch, Germany, have demonstrated how the brain's own stem cells and precursor cells control the growth of glioblastomas. Of all brain tumors, glioblastomas are among the most common and most aggressive. Dr. Sridhar Reddy Chirasani, Professor Helmut Kettenmann and Dr. Rainer Glass (all MDC) and Dr.

Depression may nearly double risk of dementia

ST. PAUL, Minn. – A new study shows that having depression may nearly double your risk of developing dementia later in life. The research will be published in the July 6, 2010, issue of Neurology®, the medical journal of the American Academy of Neurology.

Virtual food causes stress in patients affected by eating disorders

Virtual food causes stress in patients affected by eating disorders

Plasma protein appears to be associated with development and severity of Alzheimer's disease

Higher concentrations of clusterin, a protein in the blood plasma, appears to be associated with the development, severity and progression of Alzheimer's disease, according to a report in the June issue of Archives of General Psychiatry, one of the JAMA/Archives journals.

Abused children appear likely to have mental disorders as young adults

Abuse and neglect during childhood appear to be associated with increased rates of mood, anxiety and substance use disorders among young adults, according to a report in the June issue of Archives of General Psychiatry, one of the JAMA/Archives journals.

Adolescent cyberbullies and their victims may have physical, mental health problems

Adolescent victims and perpetrators of electronic bullying appear more likely to report having psychiatric and physical symptoms and problems, according to a report in the June issue of Archives of General Psychiatry, one of the JAMA/Archives journals.

Difficult childhoods lead to teenage drinking

An African study has found a link between a difficult childhood and alcohol consumption as a teenager. Researchers writing in BioMed Central's open access journal Child and Adolescent Psychiatry and Mental Health studied the association between adverse childhood experiences and drunkenness among 9,189 adolescents aged 12-19 years living in Burkina Faso, Ghana, Malawi, and Uganda.