The brain relies on an exquisite balance between the activity of two populations of neurons in a part of the brain called the striatum, the hub for motor and action planning, suggests a new study led by scientists from Harvard Medical School. The findings could help researchers better understand conditions that dramatically impact movement –… Read more

Boosting how well people at risk for psychosis learn from positive and negative feedback could potentially keep psychosis at bay, researchers at the University of Missouri have found. The team also found that brain scans using functional magnetic resonance imaging, coupled with behavioral measures, could provide markers for the diagnosis of psychosis risk. Psychotic disorders… Read more

Psychopath’s brains are wired in a way that leads them to over-value immediate rewards and neglect the future consequences of potentially dangerous or immoral actions, a new study reports. The study relies on brain scans of nearly 50 prison inmates to help explain why psychopaths make poor decisions that often lead to violence or other… Read more

Individuals who have trouble coping with uncertainty or the ambiguity of possible future threats may have an unusually large striatum, an area of the brain already associated with general anxiety disorder, according to new research. Lead author Justin Kim, PhD, of Dartmouth College, said: “Uncertainty and ambiguity of potential future threats are central to understanding… Read more

What Is The Striatum?

The striatum, also known as the neostriatum or striate nucleus, is a subcortical part of the forebrain and a critical component of the reward system. It receives glutamatergic and dopaminergic inputs from different sources and serves as the primary input to the rest of the basal ganglia system. In all primates, the dorsal striatum is… Read more