This volume covers methodologies, ranging from the molecular level to the network level, used to study receptor-receptor interactions in heteroreceptor complexes inside the central nervous system. The chapters in this book cover topics such as biochemical binding techniques; receptor autoradiography; superfused synaptosome techniques; RTK-GPCR interaction; fluorescence and bioluminiscence energy transfer methods, Co-IP cytometry-based FRET; and novel bioinformatic approaches to understand membrane heteroreceptor complexes and the global panorama of their receptor-receptor interactions. In Neuromethods series style, chapters include the kind of detail and key advice from the specialists needed to get successful results in your laboratory.