Compare and contrast different types of implantable neural devices, such as deep brain stimulators and cortical implants, based on their functionalities and applications.

Implantable neural devices are designed to interface with the nervous system and modulate neural activity to achieve specific therapeutic goals. Two common types of implantable neural devices are deep brain stimulators (DBS) and cortical implants. Let's compare and contrast these two types based on their functionalities and applications: Deep Brain Stimulators (DBS): 1. Functionality: DBS devices are designed to deliver electrical stimulation to specific deep brain structures. They consist of one or more electrodes implanted in deep brain nuclei, connected to a pulse generator (implanted subcutaneously) that delivers electrical impulses. The electrical stimulation modulates the activity of the targeted brain region. 2. Applications: * Parkinson's Disease: DBS is widely used to manage motor symptoms in Parkinson's disease. Stimulation of the subthalamic nucleus or globus pallidus helps alleviate tremors, rigidity, and bradykinesia. * Essential Tremor: DBS is effective in treating essential tremor, providing significant tremor reduction. * Dystonia: DBS can improve abnormal muscle contractions in certain types of dystonia. * Obsessive-Compulsive Disorder (OCD): DBS of the anterior limb of the internal capsule can alleviate severe OCD symptoms in refractory cases. 3. Advantages: * Reversibility: DBS is reversible, as the stimulation can be adjusted, turned off, or the device can be explanted. * Adaptable: Stimulation parameters can be fine-tuned based on individual patient needs. * N....