Editorial: Deep brain stimulation think tank: updates in neurotechnology and neuromodulation, volume IV.

This document is a review of various studies on deep brain stimulation (DBS) and its applications in treating neurological and neuropsychiatric disorders. The studies discussed include investigations into the optimal stimulation site for DBS in essential tremor patients, the effects of DBS on eye and limb movements in Parkinson's disease patients, the effects of DBS on sleep in Parkinson's disease patients, the effects of DBS on emotional stimuli in Parkinson's disease patients, and the use of DBS in treating treatment-resistant depression and obsessive-compulsive disorder. The document also discusses patient-focused considerations for DBS research and the challenges and opportunities in the field. [Extracted from the article]