Fig. 1: The subthalamic nucleus (STN) outlined with connectivity and selected gene expression.

a Anatomical subdivisions are topologically organized with STN efferents based on published neural tracing studies by Carpenter et al., 1968, Parent et al., 1989, Nambu et al., 1996 and Karachi et al., 2004. b Selected gene expression (Parvalbumin, Calbindin 2, Col24a1: detected as mRNA or protein) in mouse (c) and primate based on Hardmann et al., 1997 (d). expression patterns are altered across rostral-caudal and the dorsal-ventral axis * indicates global STN gene expression. For details and full nomenclature, see the main text. Image created in Biorender.