Neurotransmitter receptors is the academic concept and research field focused on the diverse protein molecules embedded in cell membranes that specifically bind neurotransmitters. This field investigates their molecular structure, signaling mechanisms, pharmacological properties, cellular localization, and dynamic regulation, elucidating their critical roles in mediating chemical communication between cells, particularly neurons, and their profound significance for understanding neural circuits, behavior, and the pathogenesis and treatment of neurological and psychiatric disorders.