A team of anthropology researchers has found significant differences in facial features between all seven pre-Columbian peoples they evaluated from what is now Peru -- disproving a longstanding perception that these groups were physically homogenous. The finding may lead scholars to revisit any hypotheses about human migration patterns that rested on the idea that there was little skeletal variation in pre-Columbian South America.
The use of psychedelics, such as LSD and magic mushrooms, does not increase a person's risk of developing mental health problems, according to an analysis of information from more than 135,000 randomly chosen people, including 19,000 people who had used psychedelics. The results are published today in Journal of Psychopharmacology.
Older brains may be more similar to younger brains than previously thought. In a new paper published in Human Brain Mapping, BBSRC-funded researchers at the University of Cambridge and Medical Research Council's Cognition and Brain Sciences Unit demonstrate that previously reported changes in the ageing brain using functional magnetic resonance imaging may be due to vascular (or blood vessels) changes, rather than changes in neuronal activity itself.
All over the world, gridlock, stop and go driving and constant and sometimes dangerous lane changes are a daily frustration for highway motorists. However, new research by Dr. Xiaobo Qu from Griffith University in Queensland, Australia, in collaboration with Dr. Shuaian Wang from Old Dominion University, USA, may provide the means to improving traffic safety, capacity and efficiency between cities.
By studying specially bred mice with specific developmental and cognitive traits resembling those seen in schizophrenia, UC San Francisco researchers have provided new evidence that abnormal rhythmic activity in particular brain cells contributes to problems with learning, attention, and decision-making in individuals with that disorder.
Our smartphones help us find a phone number quickly, provide us with instant directions and recommend restaurants, but new research indicates that this convenience at our fingertips is making it easy for us to avoid thinking for ourselves.
Recent research from the Long Life Family Study confirms that severe mortality-associated diseases are less prevalent in the families of long-lived individuals than in the general population. The Journals of Gerontology, Series A will publish these findings on March 5, 2015.
Did you know that our body produces its own marijuana-like compound to protect us against anxiety? A study led by Ottawa researchers, published today in Neuron, reveals a new biological pathway that regulates this system and suggests that a drug currently in clinical trials to treat obesity might also provide an attractive way to combat anxiety disorders.
A low-cost antiseptic used to cleanse the cord after birth could help reduce infant death rates in developing countries by 12 percent, a systematic review published in The Cochrane Library suggests.
A new study by researchers at the Intermountain Medical Center Heart Institute found that screening for and treating depression could help to reduce the risk of heart disease in patients with moderate to severe depression.