Figure 8: Summary diagram of the cellular heterogeneity within the human VTA and SNC subdivisions.
From: Glutamate neurons are intermixed with midbrain dopamine neurons in nonhuman primates and humans
Distribution of TH-only neurons, dual VGluT2-TH neurons, and VGluT2-only neurons within each subdivision of the human VTA and SNC. (A) VGluT2-only neurons are present throughout the VTA subdivisions but they are most frequent in the RLi. Within the SNC, pars lateralis (SNCl) contains the most VGluT2-only neurons. (B) Dual VGluT2-TH neurons are most prevalent in the PBP and RLi, they are also found within the VTASUB, but they are rarely found in the PN.(C) TH-only neurons are abundant within all subdivisions of the SNC. Each panel represents the average number of labeled neurons found in seven to twelve sections per midbrain subdivision.
