Anatomic aspects of the STN

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Anatomic aspects of the STN Anatomic aspects of the STN. Principal brain structures surrounding the STN. FF, fields of Forel; FS, subthalamic fascicle; H1, H1 field of Forel (thalamic fasciculus); H2, H2 field of Forel; IC, internal capsule; ML, medial lemniscus; PPN, pedunculopontine... Anatomic aspects of the STN. Principal brain structures surrounding the STN. FF, fields of Forel; FS, subthalamic fascicle; H1, H1 field of Forel (thalamic fasciculus); H2, H2 field of Forel; IC, internal capsule; ML, medial lemniscus; PPN, pedunculopontine nucleus; Put, putamen; SN, substantia nigra; Thal, thalamus; ZI, zona incerta. Part of this figure was modified and reprinted with permission from Hamani et al. (2004). Clement Hamani et al. eNeuro 2017;4:ENEURO.0140-17.2017 ©2017 by Society for Neuroscience