title: Neuromodulation.
abstract: The ability of the nervous system to respond to the environment and to learn depends upon the tuning of neuronal electrical activity, loosely called neuromodulation. The substrates for electrical activity and, therefore, neuromodulation are ion channels which may be either synaptic or extrasynaptic. Neuromodulation is dynamic and most frequently involves neurotransmitters and hormones acting via G-protein-coupled pathways.
authors.affiliation: Department of Molecular Physiology and Biophysics, Baylor College of Medicine, Houston, Texas 77030.
authors.forename: H S
authors.initials: HS
authors.lastname: Lopez
authors.forename: A M
authors.initials: AM
authors.lastname: Brown
mesh_terms: D000818:Animals; D019204:GTP-Binding Proteins / Q000502:physiology; D006801:Humans; D009424:Nervous System Physiological Phenomena; D009434:Neural Pathways / Q000502:physiology
chemical_list: D019204:GTP-Binding Proteins