Alzheimer’s may leave some forms of memory intact
Howard Hughes Medical Institute (HHMI) researchers have made the surprising discovery that people with Alzheimer’s disease retain the capability for a specific form of memory used for rote learning of skills, even though their memories of people and events are extinguished. The scientists’ discovery suggests new strategies to improve training and rehabilitative programs that may bolster the retained cognitive function of those with Alzheimer’s disease and healthy older people.
Advances in technology impact value of workers’ skills
MacDonaldIt is no secret that advances in technology can greatly impact the value of workers’ skills. Older workers often find the updating of complex technology uneconomic, while younger workers acquire and readily employ skills tailored to the newest technology. The result: the latter group’s productivity rises, diminishing the value of output produced by their older counterparts. A recently published study by Glenn MacDonald, Washington University’s John M. Olin Distinguished Professor of Economics and Strategy, is the first to model and explain the nature and severity of this effect.
Opposition to charter school movement misguided, says expert in U.S. legal, social history
Charter schools are attended disproportionately by poor, minority students.Since their creation in the early 1990s, charter schools have come under fire from many civil rights supporters. “Traditional advocates of civil rights claim that charter schools are but another opportunity for whites to escape from the public school system and gain advantage for their children at taxpayers’ expense,” says Tomiko Brown-Nagin, associate professor of law and of history at Washington University in St. Louis. “This criticism overlooks the astounding fact, however, that most charter schools have been established in poor, minority neighborhoods and are attended disproportionately by poor, minority students — those whose schools and neighborhoods have been untouched by Brown v. Board of Education.”
No consensus on when, how, by whom even if Alzheimer’s patients are told of their disease
Photo courtesy of Alzheimer’s Association, St. Louis ChapterA WUSTL psychologist says there is little consensus among doctors when it comes to disclosing a dementia diagnosis to patients and their caregivers.To tell or not to tell, that is the question. Should Alzheimer’s disease patients be told of the diagnosis? If so, when, how and by whom? Brian D. Carpenter, Ph.D., an assistant professor of psychology in Arts & Sciences at Washington University in St. Louis, conducted a review of related study literature that shows there is little consensus among clinicians on the issue of disclosing a dementia diagnosis and great room for much more research. Carpenter’s review, done with research assistant Jennifer Dave, was published in the April 2004 issue of The Gerontologist. “If contemporary debate and practice are any indication, there is no consensus on these matters,” Carpenter says in the article “Disclosing a Dementia Diagnosis: A Review of Opinion and Practice, and a Proposed Research Agenda.”
Holidays and special events have no proven effect on the timing of death
WUSTL researchers have found no convincing evidence that people can delay or hasten their own deaths through sheer will.Many of us know stories about terminally ill friends or relatives who were able to battle their illnesses in order to survive until a birthday or other important occasion. In much of medicine, it’s an accepted “truth” that people can hang on or give up and somehow influence the timing of their own deaths. But in reviewing every study on the subject of delaying death, Washington University behavioral medicine researchers have found that there’s no evidence to support the idea that terminally ill people can have an effect on when they die.
Survival of the fittest? Anthropologist suggests the nicest prevail not just the selfish
Are humans inherently good? The prevailing view in popular and scientific literature is that humans and animals are genetically driven to compete for survival, thus making all social interaction inherently selfish. According to this line of reasoning, known as sociobiology, even seemingly unselfish acts of altruism merely represent a species’ strategy to survive and preserve its genes. But Robert W. Sussman, Ph.D., a professor of anthropology in Arts & Sciences at Washington University in St. Louis, argues that this is a narrow and simplistic view of evolutionary theory that fails to explain many aspects of sociality among mammals in general and primates in particular. In “The Origins and Nature of Sociality,” a new book Sussman co-edited, he and other researchers challenge the proponents of sociobiology. “The ‘selfish gene’ hypothesis is inadequate,” Sussman says.
Survival of the fittest? Anthropologist suggests the nicest prevail — not just the selfish
Are altruism and morality artificial outgrowths of culture, created by humans to maintain social order? Or is there, instead, a biological foundation to ethical behavior? In other words, are we inherently good? The prevailing view in popular and scientific literature is that humans and animals are genetically driven to compete for survival, thus making all […]
Nobel Laureate Douglass North seeks consensus on solving global woes
NorthDouglass C. North, Ph.D., the Spencer T. Olin Professor in Arts & Sciences and a co-recipient of the Nobel Memorial Prize in Economic Science, joined a panel of distinguished economists in Denmark May 24-28th for an intensive forum exploring the costs and benefits of ongoing efforts to address critical global challenges, such as war, famine and disease.
Iraqi abuse known to world long before U.S. public, says international law expert
Sadat”The story of abuse at Abu Ghraib prison is shocking, and certainly requires a full investigation, and perhaps the criminal prosecution of some of those either directly or indirectly responsible,” says Leila N. Sadat, vice-president and co-director of studies of the American branch of the International Law Association. “However, one thing the story is not, is new. While leading an International Bar Association training program for Iraqi lawyers, judges and prosecutors in Dubai in February, I saw a story on CNN International which reported that 17 soldiers had been relieved of command due to allegations of torture and abuse. Sadat comments on her discussions with Iraqi lawyers as well as the treatment of civilians in the prison.
Low receptor levels and low mood
Areas of red and yellow show increased uptake of the altanserin tracer due to binding to the serotonin receptors.Most of us feel sad from time to time, even very sad, but during a bout of clinical depression, a person is unable to escape their low mood for several weeks at a time. A popular and effective treatment for depression involves a class of drugs called selective serotonin reuptake inhibitors (SSRIs). Those drugs increase serotonin levels in the brain and help relieve symptoms of depression, and most scientists believe the brain chemical serotonin plays a key role in depression. Now neuroscience researchers at Washington University School of Medicine in St. Louis have found that in people who are depressed, a key brain structure has an abnormally low number of cellular serotonin receptors.
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