Editing Deep brain stimulation (section)

====Sleep====
The effects of DBS on sleep are heterogenous but it generally improves in quality over time.<ref>{{cite journal |last1=Liu |first1=Y |last2=Zhang |first2=L |title=Subthalamic nucleus deep brain stimulation improves sleep in Parkinson's disease patients: a retrospective study and a meta-analysis. |journal=Sleep Medicine |date=October 2020 |volume=74 |pages=301–306 |doi=10.1016/j.sleep.2020.07.042 |pmid=32882663}}</ref> There is an increase of complex behavior during REM sleep after surgery independent of DBS target, while REM sleep without atonia increases with STN and decreases with GPi.<ref>{{cite journal |last1=Cavalloni |first1=F |last2=Bargiotas |first2=P |title=A case series and systematic review of rapid eye movement sleep behavior disorder outcome after deep brain stimulation in Parkinson's disease. |journal=Sleep Medicine |date=January 2021 |volume=77 |pages=170–176 |doi=10.1016/j.sleep.2020.11.025 |pmid=33412362|url=https://boris.unibe.ch/149175/ }}</ref>