In PV cells, axons with myelin contain more mitochondria. When myelin is decreased in PV cells, mitochondria also decrease. However, mitochondria increase when myelin is lost in excitatory cells.
Powerful hierarchical situations make it easier for individuals to commit harmful actions. The reason for this, researchers say, is because empathy and agency become split across multiple individuals.
Study provides insight into the behavioral function of dopamine signaling in the striatum.
Researchers created a form of artificial vision for a blind woman with the aid of a brain implant position in the visual cortex. The results pave the way for the creation of visual brain prosthetics to help the blind to regain sight.
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.