Scientists determine that dopmanine is released quickly in specific locations by specialized neurons. Also, seems like this is mediated by one specific protein (RIM).
Changliang Liu, Lauren Kershberg, Jiexin Wang, Shirin Schneeberger, Pascal S. Kaeser. Dopamine Secretion Is Mediated by Sparse Active Zone-like Release Sites. Cell, 2018; DOI: 10.1016/j.cell.2018.01.008
Changliang Liu, Lauren Kershberg, Jiexin Wang, Shirin Schneeberger, Pascal S. Kaeser. Dopamine Secretion Is Mediated by Sparse Active Zone-like Release Sites. Cell, 2018; DOI: 10.1016/j.cell.2018.01.008