Final answer:
Deep-brain stimulation is a surgical treatment option for Parkinson's disease that involves the implantation of electrodes in specific areas of the brain. The targets for deep-brain stimulation in Parkinson's disease are the subthalamic nucleus (STN) and the globus pallidus internus (GPi). By stimulating these areas, deep-brain stimulation helps to alleviate motor symptoms and improve the quality of life for Parkinson's patients.
Step-by-step explanation:
Parkinson's disease is a neurodegenerative disorder that is characterized by the degeneration of neurons in the substantia nigra pars compacta, which release dopamine into the striatum. The loss of dopamine in the brain leads to motor symptoms such as tremors, rigidity, and bradykinesia. Deep brain stimulation (DBS) is a surgical treatment option for Parkinson's disease, where electrodes are implanted in specific areas of the brain to deliver electrical stimulation. The targets for DBS in Parkinson's disease include the subthalamic nucleus (STN) and the globus pallidus internus (GPi). By stimulating these areas, it helps to alleviate motor symptoms and improve the quality of life for Parkinson's patients.