Sleep deprivation affects visual ability

Neuroscience researchers at the Duke-NUS Graduate Medical School in Singapore have shown for the first time what happens to the visual perceptions of healthy but sleep-deprived volunteers who fight to stay awake, like people who try to drive through the night. – Researchers have found that a sleep-deprived brain can normally process simple visuals, like flashing checkerboards. But the ?higher visual areas’ ? those that are responsible for making sense of what we see ? didn’t function well.

CD16 monocyte could be a biomarker for progression of HIV

Expansion of a monocyte subset in HIV patients could serve as a biomarker for progression of the disease. – An increase in the CD163+/CD16+ monocyte subset could be a biomarker for the progression of HIV disease, according to researchers at Temple University, reported in the March issue of AIDS Research and Human Retroviruses.

Past child abuse and genes result in PTSD risk for adults

A traumatic event is much more likely to result in posttraumatic stress disorder (PTSD) in adults who experienced trauma in childhood ? but certain gene variations raise the risk considerably. – A traumatic event is much more likely to result in posttraumatic stress disorder (PTSD) in adults who experienced trauma in childhood ? but certain gene variations raise the risk considerably if the childhood trauma involved physical or sexual abuse, scientists have found. The research was conducted with funding from the National Institute of Mental Health, which is part of the National Institutes of Health, and others.

Non medical users of prescription drugs are at drug abuse risk

Nonmedical users of prescription drugs are at heightened risk for drug abuse, whereas medical users without a history of nonmedical use are generally not at increased risk. Drug abuse screening should be routine for college students, especially among individuals with any history of nonmedical use of prescription drugs. – College students who take frequently abused medications without a prescription appear to have a higher risk for drug abuse than those who use such therapies for medical reasons, according to a report in the March issue of Archives of Pediatrics & Adolescent Medicine, one of the JAMA/Archives journals.

Brain scans reveal biological basis of cocaine addiction

Cocaine alters the parts of the brain responsible for controlling behaviour and making appropriate decisions. – Researchers looking at brain activity of cocaine users may have identified a biological lack of willpower’ that will help us understand why some people become long-term addicts while others can use the drug socially.

Australian health budget for a responsible long term health plan

Australian Medical Association (AMA) Federal Budget Submission 2008-09 provides the Government with suggested health spending priorities to build a sustainable and equitable health system to serve Australians for the long term. – The Australian Medical Association (AMA) Federal Budget Submission 2008-09 provides the Government with suggested health spending priorities to build a sustainable and equitable health system to serve Australians for the long term. The Submission was lodged with Treasury on 18 January in keeping with the Treasurer’s deadline.

Health Newstrack