Okazaki, Japan – Parkinson’s disease is characterized by motor symptoms, such as trembling hands, muscle stiffness, and difficulty in initiation of movements, and it affects around 1% of people over ...

The substantia nigra is a motor nucleus located in the basal ganglia of the midbrain. This brain structure contributes to the body's cognitive and motor functions by sending signals to initiate or ...

Neurons deep in the brain not only help to initiate movement—they also actively suppress it, and with astonishing precision. This is the conclusion of a new study by researchers at the University of ...

Neurons deep in the brain not only help to initiate movement -- they also actively suppress it, and with astonishing precision. The findings are especially relevant for better understanding ...

Researchers have applied a chemogenetic tool in macaque monkeys and suppressed the subthalamic nucleus, a part of the basal ganglia circuitry. The chemogenetic suppression induced unstable movements.

Basal ganglia regions are located in the midbrain. Source: CLIPAREA l Custom media/Shutterstock Stuttering during childhood is a relatively common occurrence. Roughly one in 20 kids (5 percent) go ...

Researchers at Karolinska Institutet, Columbia University and the University of San Francisco, have uncovered a previously unknown mechanism by which dopamine, a key brain chemical vital for movement ...

SNr neurons in the midbrain send precise signals to control movement. Their activity determines which movements actions are initiated or inhibited. Neurons deep in the brain not only help to initiate ...