AUTHOR=Silva-dos-Santos Amílcar , Sales Miguel , Sebastião Ana , Gusmão Ricardo TITLE=A New Viewpoint on the Etiopathogenesis of Depression: Insights From the Neurophysiology of Deep Brain Stimulation in Parkinson's Disease and Treatment-Resistant Depression JOURNAL=Frontiers in Psychiatry VOLUME=12 YEAR=2021 URL=https://www.frontiersin.org/journals/psychiatry/articles/10.3389/fpsyt.2021.607339 DOI=10.3389/fpsyt.2021.607339 ISSN=1664-0640