The criteria used to diagnose both circulatory and brain death in a patient are subject to variability and as such can be controversial. Anaesthesiologists play an important role in procedures related to the determination of death, so should have specific knowledge about medical, ethical and legal criteria of brain death definition. Experts will call for international consensus in a presentation at Euroanaesthesia 2013, the annual congress of the European Society of Anaesthesiology (ESA).
Brain
The PASS, short for "Personal Alert Safety System," has been used by firefighters for thirty years to help track members of their team who might be injured and need assistance to escape a fire. Though the alarm has saved many lives, there are cases in which the device is working correctly but is not heard or not recognized. In one recent incident report from 2010, firefighters inside a burning building either did not hear or heard and then stopped hearing an alarm that was easily audible from outside the building.
When Neil Armstrong took his first step on the Moon, he claimed he said, "One small step for a man, one giant leap for mankind" – but many listeners think he left out the "a." A team of speech scientists and psychologists from Michigan State University (MSU) in East Lansing and The Ohio State University (OSU) in Columbus is taking a novel approach to deciphering Armstrong's quote by studying how speakers from his native central Ohio pronounce "for" and "for a." Their results suggest that it is entirely possible that Armstrong said what he claimed, though evidence indicates that people are s
Mice engineered with a human gene for schizophrenia and exposed to lead during early life exhibited behaviors and structural changes in their brains consistent with schizophrenia. Scientists at Columbia University's Mailman School of Public Health and the Johns Hopkins University School of Medicine say their findings suggest a synergistic effect between lead exposure and a genetic risk factor, and open an avenue to better understanding the complex gene-environment interactions that put people at risk for schizophrenia and other mental disorders.
MADISON – A Facebook profile is an ideal version of self, full of photos and posts curated for the eyes of family, friends and acquaintances. A new study shows that this version of self can provide beneficial psychological effects and influence behavior.
DARIEN, IL – A new study suggests that one night of sleep deprivation leads to an increase in men's perceptions of both women's interest in and intent to have sex.
DARIEN, IL – A new study suggests that bright light therapy may improve sleep, cognition, emotion and brain function following mild traumatic brain injury (TBI).
Results show that six weeks of morning bright light therapy resulted in a marked decrease in subjective daytime sleepiness. This improvement was further associated with improvements in the propensity to fall asleep and nighttime sleep quality. Bright light therapy also affected depressive symptoms.
Nicotine replacement therapy and other licensed drugs can help people quit smoking, according to a new systematic review published in The Cochrane Library. The study, which is an overview of previous Cochrane reviews, supports the use of the smoking cessation medications that are already widely licensed internationally, and shows that another drug licensed in Russia could hold potential as an effective and affordable treatment.
Two key personality traits – openness-to-experience and conscientiousness – predict better than IQ who will take music lessons and continue for longer periods, according to a new study.
A team of researchers, led by Glenn Schellenberg at the University of Toronto Mississaug, also found that when personality traits and demographic factors are considered, the link between cognitive ability and music training disappears.
Bilinguals have the remarkable ability to switch from one language to the other. In a new study, Jason Gullifer and colleagues from Pennsylvania State University, USA, looked at whether language switching incurs a processing cost.
They show that the mind has little difficulty in preventing such mix-ups between languages. When 26 North American Latino people were asked to read aloud an underlined word within a text that mixed English and Spanish, they did not think longer or make more mistakes than when the text was in a single language.
GLYX-13, a molecular cousin to ketamine, induces similar antidepressant results without the street drug side effects, reported a study funded by the National Institute of Mental Health (NIMH) that was published last month in Neuropsychopharmacology.
Research has shown that healthy behaviors are associated with a lower risk of Alzheimer's disease and dementia, but less is known about the potential link between positive lifestyle choices and milder memory complaints, especially those that occur earlier in life and could be the first indicators of later problems.
STANFORD, Calif. — Researchers at the Stanford University School of Medicine have found that a naturally occurring protein secreted only in discrete areas of the mammalian brain may act as a Valium-like brake on certain types of epileptic seizures.
The protein is known as diazepam binding inhibitor, or DBI. It calms the rhythms of a key brain circuit and so could prove valuable in developing novel, less side-effect-prone therapies not only for epilepsy but possibly for anxiety and sleep disorders, too. The researchers' discoveries will be published May 30 in Neuron.
Though marijuana is a well-known recreational drug, extensive scientific research has been conducted on the therapeutic properties of marijuana in the last decade. Medical cannabis is often used by sufferers of chronic ailments, including cancer and post-traumatic stress disorder, to combat pain, insomnia, lack of appetite, and other symptoms.
Research at Lund University in Sweden gives hope that one of the most serious types of brain tumour, glioblastoma multiforme, could be fought by the patients' own immune system. The tumours are difficult to remove with surgery because the tumour cells grow into the surrounding healthy brain tissue. A patient with the disease therefore does not usually survive much longer than a year after the discovery of the tumour.