Brain Disease

U.S. News & World Report: Frailty a risk factor for dementia

Frailty is associated with a higher risk of both Alzheimer’s disease and its crippling symptoms, a new study shows. “By reducing an individual’s physiological reserve, frailty could trigger the clinical expression of dementia when it might remain asymptomatic in someone who is not frail,” said study leader Dr. Kenneth Rockwood, a professor at Dalhousie University […]

Futurity: 4 factors predict risk of postpartum depression

Four characteristics may offer a way to predict if a woman will experience postpartum depression—and if her symptoms will worsen over the first year after giving birth. Identifying the factors early on could allow earlier treatment and improve chances of a full recovery, say researchers. (January 17, 2019) Read the full article here

News-Medical: Low-level cannabis use can change the adolescent brain

Teenagers who report using recreational marijuana just once or twice display increased volume of numerous brain regions, according to a study of 14-year-olds from Ireland, England, France, and Germany. The research, published in JNeurosci, warrants further study of low-level cannabis use among adolescents amid changing societal attitudes toward the drug. (January 16, 2019) Read the […]

Medical Xpress: Study identifies a new way by which the human brain marks time

With a little help from HBO’s “Curb Your Enthusiasm,” University of California, Irvine neurobiologists have uncovered a key component of how the human brain marks time. Using high-powered functional MRI on college students watching the popular TV show, they were able to capture the processes by which the brain stores information related to when events […]

Reuters: Just one or two experiences with marijuana may alter teen brains

Teens who use pot just one or two times may end up with changes to their brains, a new study finds. There were clear differences on brain scans between teens who said they had tried cannabis a couple of times and those who completely eschewed the drug, researchers reported in the Journal of Neuroscience. (January […]

Spectrum: Communication in brain may be remarkably constant in autism

Patterns of brain activity in people with autism are unusually consistent over seconds — and even years, two new studies suggest. One study shows that patterns of connectivity remain stable in autistic adolescents, whereas they tend to change and specialize in controls. The other study found that connections remain fixed longer in people with autism […]