Everything we do — all of our movements, thoughts and feelings – are the result of neurons talking with one another, and recent studies have suggested that some of the conversations might not be all that private. Brain cells known as astrocytes may be listening in on, or even participating in, some of those discussions. But a new mouse study suggests that astrocytes might only be tuning in part of the time — specifically, when the neurons get really excited about something.
Brain
Our ability to store memories improves during childhood, associated with structural changes in the hippocampus and its connections with prefrontal and parietal cortices. New research from UC Davis is exploring how these brain regions develop at this crucial time. Eventually, that could give insights into disorders that typically emerge in the transition into and during adolescence and affect memory, such as schizophrenia and depression.
Waves in your brain make smells stick to your memories and inner maps.
When I was a child I used to sit in my grandfather's workshop, playing with wood shavings. Freshly shaven wood has a distinct smell of childhood happiness, and whenever I get a whiff of that scent my brain immediately conjures up images of my grandfather at his working bench, the heat from the fireplace and the dog next to it.
DURHAM, N.C. -- Maintaining an interest in the goals you pursue can improve your work and reduce burnout, according to research from Duke University.
"Our research shows that interest is important in the process of pursuing goals. It allows us to perform at high levels without wearing out," said Paul O'Keefe, who conducted the studies as a doctoral student in Duke University's Department of Psychology & Neuroscience, along with associate professor Lisa Linnenbrink-Garcia. "This suggests that interest matters more than we suspected."
Irvine, Calif., April 16, 2014 — A class of drugs developed to treat immune-related conditions and cancer – including one currently in clinical trials for glioblastoma and other tumors – eliminates neural inflammation associated with dementia-linked diseases and brain injuries, according to UC Irvine researchers.
LA JOLLA—Scientists at the Salk Institute have created a new model of memory that explains how neurons retain select memories a few hours after an event.
This new framework provides a more complete picture of how memory works, which can inform research into disorders liked Parkinson's, Alzheimer's, post-traumatic stress and learning disabilities.
TORONTO, ON -- A new University of Toronto study has found that by two years of age, children are remarkably good at comprehending speakers who talk with accents the toddlers have never heard before.
Even more striking, say researchers, children as young as 15 months who have difficulty comprehending accents they've never heard before can quickly learn to understand accented speech after hearing the speaker for a short time.
April 15, 2014, Irvine, Calif. — UC Irvine neurobiologists have found that genetically modified neural stem cells show positive results when transplanted into the brains of mice with the symptoms and pathology of Alzheimer's disease. The pre-clinical trial is published in the journal Stem Cells Research and Therapy, and the approach has been shown to work in two different mouse models.
A functional brain imaging technique known as positron emission tomography (PET) is a promising tool for determining which severely brain damaged individuals in vegetative states have the potential to recover consciousness, according to new research published in The Lancet.It is the first time that researchers have tested the diagnostic accuracy of functional brain imaging techniques in clinical practice.
TORONTO, April 15, 2014—Teenagers who have suffered a traumatic brain injury such as a concussion are at "significantly greater odds" of attempting suicide, being bullied and engaging in a variety of high risk behaviours, a new study has found.
They are also more likely to become bullies themselves, to have sought counselling through a crisis help-line or to have been prescribed medication for anxiety, depression or both, said Dr. Gabriela Ilie, lead author of the study and a post-doctoral fellow at St. Michael's Hospital.
Washington, DC — The size and shape of two brain regions involved in emotion and motivation may differ in young adults who smoke marijuana at least once a week, according to a study published April 16 in The Journal of Neuroscience. The findings suggest that recreational marijuana use may lead to previously unidentified brain changes, and highlight the importance of research aimed at understanding the long-term effects of low to moderate marijuana use on the brain.
WASHINGTON – In the first known study of its kind, researchers have shown that the language we learn as children affects brain structure, as does hearing status. The findings are reported in the Journal of Neuroscience.
CHICAGO --- Young adults who used marijuana only recreationally showed significant abnormalities in two key brain regions that are important in emotion and motivation, scientists report. The study was a collaboration between Northwestern Medicine® and Massachusetts General Hospital/Harvard Medical School.
In a study of nearly 1,000 mother-child pairs, researchers from the Bloomberg School of Public health found that prenatal exposure to selective serotonin reuptake inhibitors (SSRIs), a frequently prescribed treatment for depression, anxiety and other disorders, was associated with autism spectrum disorder (ASD) and developmental delays (DD) in boys.