The results surprised Amy Brunell, lead author of the study and associate professor of psychology at The Ohio State University at Mansfield.
"I thought that narcissists, given that they are impulsive and have high opinions of themselves, would take bigger risks. That's what other research would have suggested," Brunell said.
"But any association between narcissism and risk-taking that we found was very small and essentially meaningless."
MIT researchers are developing a computer system that uses genetic, demographic, and clinical data to help predict the effects of disease on brain anatomy.
In experiments, they trained a machine-learning system on MRI data from patients with neurodegenerative diseases and found that supplementing that training with other patient information improved the system's predictions. In the cases of patients with drastic changes in brain anatomy, the additional data cut the predictions' error rate in half, from 20 percent to 10 percent.
TORONTO, Oct. 7, 2015 - More than half of workers who reported symptoms of depression did not perceive a need for treatment, according to a study from the Centre for Addiction and Mental Health (CAMH) in Toronto.
Head injury patients do not benefit from a therapy that involves cooling their bodies to reduce brain swelling, research has found.
Lowering body temperature - a therapy known as induced hypothermia - did not improve patients' chances of recovery, the study showed.
Doctors say the therapy may increase patients' risk of death and disability and should not be used to treat traumatic brain injuries.
Cooling the brain helps to reduce the build-up of pressure inside the head, which is strongly linked to long-term disability and death following head injury.
Detecting how changes in one spot on Earth - in temperature, rain, wind - are linked to changes in another, far away area is key to assessing climate risks. Scientists now developed a new technique of finding out if one change can cause another change or not, and which regions are important gateways for such teleconnections. They use advanced mathematical tools for an unprecedented analysis of data from thousands of air pressure measurements.
The way our brain responds to others' good fortune is linked to how empathetic people report themselves to be, according to new UCL-led research.
The study, published today in the Journal of Neuroscience and funded by the Medical Research Council, shows that a part of the brain called the anterior cingulate cortex (ACC) seems particularly attuned to other people's good news, but how it responds varies substantially depending on our levels of empathy.
In a study exploring racial bias and how people use their mind's-eye image of an imagined person's size to represent someone as either threatening or high-status, UCLA researchers found that people envisioned men with stereotypically black names as bigger and more violent.
ANN ARBOR, Mich. - The results of a five-year trial from faculty at the University of Michigan Injury Center found giving youth in the emergency department a short intervention during their visit decreased their alcohol consumption and problems related to drinking over the following year.
Early interventions are needed to reduce underage drinking and associated injury. Although the emergency department has long been seen as an important location to reach youth with risky drinking, how to do this practically has been a challenge.
New Haven, Conn.--The most effective prescription drug used to quit smoking initially helps women more than men, according to a Yale School of Medicine study.The study, published Oct. 7 by the journal Nicotine and Tobacco Research, found that varenicline, marketed as Chantix, was more effective earlier in women, and equally effective in women and men after one year.
Past research has shown that the pleasure and reward centers of the brain are activated similarly by dangerous drugs as well as by exercise, which is why therapies have been developed for drug addicts that include lots of exercise. Now, researchers at the University of Missouri have found that activating these pleasure and reward receptors in the brain could provide the "reward" of dangerous drugs without having to consume those drugs.
Cold Spring Harbor, NY -- Responding appropriately to the smell of food or the scent of danger can mean life or death to a fruit fly, and dedicated circuits in the insect's brain are in place to make sure the fly gets it right.
Kids who are taught to reason about the mental states of others are more likely to use deception to win a reward, according to new research published in Psychological Science.
The findings indicate that developing "theory of mind" (ToM) -- a cognitive ability critical to many social interactions -- may enable children to engage in the sophisticated thinking necessary for intentionally deceiving another person.
Repeating aloud boosts verbal memory, especially when you do it while addressing another person, says Professor Victor Boucher of the University of Montreal's Department of Linguistics and Translation. His findings are the result of a study that will be published in the next edition of Consciousness and Cognition. "We knew that repeating aloud was good for memory, but this is the first study to show that if it is done in a context of communication, the effect is greater in terms of information recall," Boucher explained.
How does the brain determine which direction to let its thoughts fly? Looking for the mechanisms behind cognitive control of thought, researchers at the University of Pennsylvania, University of California and United States Army Research Laboratory have used brain scans to shed new light on this question.
West Orange, NJ. October 5, 2015. Scientists found that individuals with multiple sclerosis (MS) who had a history of neuro-ophthalmic syndromes performed poorly on visual neuropsychological tasks. The article, "Neuro-ophthalmic syndromes and processing speed in multiple sclerosis," (doi: 10.1097/WNO.0000000000000272)) was published in the Journal of Neuro-Ophthalmology. The authors are Silvana Costa, PhD, of the University of Minho, Braga, Portugal, and Kessler Foundation, Dr.