Impact of Combined Subthalamic Nucleus and Substantia Nigra Stimulation on Neuropsychiatric Symptoms in Parkinson’s Disease Patients

Figure 3

Stereotactic reconstruction: squares indicate the localization of the most ventral DBS electrode contacts, superimposed on frontal sections of the stereotactic atlas of Morel, at a level 5 mm behind midcommissural point [50]. Circles indicate the ventral STN border as defined by standard electrophysiological criteria. Diamonds indicate the presence of unambiguous SNr cell activity on MER tracks. Colors represent individual patients. The dashed red lines denote midline and AC-PC level, respectively. STN: subthalamic nucleus; SNr: substantia nigra pars reticulata; SNc: substantia nigra pars compacta; CP: cerebral peduncle; RN, red nucleus.