MicroRNA-132 regulates neurogenesis in the hippocampus, according to both mouse and human tissue studies. Restoring levels of microRNA-132 in mouse models of Alzheimer's disease reduces neurogenetic deficits and restores cognitive abilities, researchers say.
Coercion to perform detrimental actions against others reduces empathy and guilt, a new study reports. The findings may explain why people are able to commit immoral acts that go against their ethical stance when coerced.
In late-stage multiple sclerosis, inflammatory cells no longer enter the brain via the bloodstream, but instead the cells arise in memory from local memory cells inside the brain. The findings suggest during the late phases of multiple sclerosis, the disease is occurring entirely inside the brain.
Rats show altruistic behavior and avoid harming other rats. Researchers report harm aversion is deeply engrained in our biology. The findings pave the way to increasing harm aversion in those with empathy disorders, such as psychopathy and sociopathy.
Reducing activity in the anterior cingulate decreases empathetic responses in rats. The data suggests an observer shares the emotions of others as it enables them to prepare for danger.
For some, insomnia may be caused by failing to neutralize emotional distress. Researchers speculate the sleep disorder could be caused by brain circuits that regulate emotion.
Researchers have identified five different subtypes of the sleep disorder insomnia, including difficulty falling asleep and early morning awakening. The study reports insomnia subtypes may be identified by examining personality traits of sufferers.
Researchers have discovered how the nature of T cells help protect the brain from viruses. The findings shed light on the role the immune system plays in a number of neurodegenerative disorders.