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. Author manuscript; available in PMC: 2016 Nov 1.
Published in final edited form as: Neurosci Biobehav Rev. 2015 Feb 12;58:186–210. doi: 10.1016/j.neubiorev.2015.02.003

Figure 1.

Figure 1

Normal functioning of cortico-BG motor loop as proposed by Alexander, Delong and Strick (1986), Albin, Young, and Penney (1989) and Nambu (2002). Cx, cerebral cortex; GPe, external globus pallidum; GPi, internal globus pallidum; SNc, subtantia nigra pars compacta; SNr, substantia nigra pars reticulata; STN, subthalamic nucleus; Str, striatum; Th, thalamus. Illustration adapted with permission from Nambu (2011).