Depression investigators at The Research Institute of University Hospitals of Cleveland have zeroed in on the neurotransmitter serotonin, a brain chemical that regulates emotion. Their tactics: reduce serotonin levels in each study subject to learn who is vulnerable for developing major depression.
This new study, funded by the National Institute of Mental Health, is designed to help scientists better understand the role of serotonin in people who get major depression. By examining the way
A new UCLA Neuropsychiatric Institute study shows for the first time that measurable changes in the front of the brain can predict the effectiveness of an antidepressant within days of treatment — weeks before a patient begins to feel better.
Using quantitative EEG, a non-invasive computerized measurement of brain wave patterns, the researchers discovered that specific changes in brain-wave activity precede clinical changes brought on by medication. The new findings, published in the July e
Finding has implications for future of biodiversity
A significant number of organisms that survived the five greatest mass extinctions in Earths history subsequently failed to achieve evolutionary success, according to a new study funded by the National Science Foundation (NSF) and conducted by University of Chicago scientist David Jablonski.
“Its clear that there is a lot of evolutionary action in the aftermath of mass extinctions,” said Jablonski. “During the re
A substance produced by tomatoes repels mosquitoes and other insects more effectively and is safer than DEET, the chemical most commonly used in insect repellents, a North Carolina State University scientist has discovered.
Indeed, work by Dr. Michael Roe, William Neal Reynolds Distinguished Professor of Entomology at NC State, showed that the natural compound found in tomatoes is so effective at repelling insects that the university patented the substance. The patent describes how the subs
Cell-free zones recommended
Preliminary results of a University of Rhode Island analysis of the eye-movements of automobile drivers using cell phones found that the drivers have a reduced field of view – tunnel vision. Further studies may have significant implications on the use of cell phones in automobiles.
URI industrial engineering Professor Manbir Sodhi and psychology Professor Jerry Cohen used a head-mounted, eye-tracking device on volunteer drivers and con
Drilling for oil is expensive – and only too often unsuccessful: in 80 to 90 per cent of all attempts the drill head ends up in worthless sediment rather than hitting the black jackpot as intended. In this way, with every unsuccessful drilling, companies squander several million euros. Yet there is an alternative: the use of tiny fossilised single-celled organisms can reveal to the expert where prospecting for oil is worth while, a dying art at which only a few specialists worldwide still remain prof