Fig. 1: (A, B) Photomicrographs of 2 sections of the human thalamus stained for acetylcholinesterase (AChE), illustrating the anatomic location of the mediodorsal nucleus (MD). High-power views of some neurons stained for (C) calbindin, (D) parvalbumin and (E) calretinin neurons in the human MD. Scale: 3 mm (A, B) and 25 μm (C, D, E). AV = anteroventral nucleus; CM = central medial nucleus; CN = caudate nucleus; GPL = globus pallidus lateral segment; GPM = globus pallidus medial segment; IC = internal capsule; LD = lateral dorsal nucleus; LGd = lateral eniculate nucleus; Put = putamen; R = reticular nucleus; VA = ventral anterior nucleus; VLa = ventral lateral anterior nucleus; VLp = central lateral posterior nucleus; VPM = ventral posterior medial nucleus.