New research shows that when mice experience chronic stress, neurons within part of their brain's fear and anxiety center, the amygdala, retract. It also suggests how such changes could be prevented.
A Purdue University study shows that honeybees collect the vast majority of their pollen from plants other than crops, even in areas dominated by corn and soybeans, and that pollen is consistently contaminated with a host of agricultural and urban pesticides throughout the growing season.
A region of the brain that responds to bad experiences has the opposite reaction to expectations of aversive events in people with depression compared to healthy adults, finds a new UCL study funded by the Medical Research Council.
'Paediatric Digestive Health Across Europe', commissioned by United European Gastroenterology, highlights how the current health burden and economic pressure of pediatric digestive health issues, in particular the increasing levels of childhood obesity, have become a pandemic issue throughout the continent.
Researchers using contrast-enhanced MRI have identified leakages in the blood-brain barrier of people with early Alzheimer's disease, according to a new study. The results suggest that increased BBB permeability may represent a key mechanism in the early stages of the disease.
Monkeys who could not use their MD were less able to respond to changes that required them to adapt their behavior to continue making the right choices to maximize rewards. They also struggled with their decisions when they were presented with a choice of several differently rewarded options.