Figure 1.

Deep brain stimulation targets and corresponding levels of evidence. The sphere size corresponds to the level of evidence for that specific target; higher evidence levels correspond to larger spheres. White spheres: essential tremor. Purple spheres: Parkinson’s disease. Brain nuclei: green: ventral motor part of the thalamus, sky blue: external pallidum, turquoise: internal pallidum, yellow: subthalamic nucleus, orange: substantia nigra, red: red nucleus. Grey fibers: dentato-rubro-thalamic tract.