title: Floyd Bloom Discusses the Messengers of the Mind.
abstract: Some of the basic principles of nervous system function that we now take for granted were once topics of great controversy that required decades of research to resolve. One such principle is that neurons communicate via chemicals.
authors.affiliation: Science Writer, Society for Neuroscience.
authors.forename: Teresa
authors.initials: T
authors.lastname: Esch
keywords: acetylcholine; monoamines; neurotransmitters; norepinephrine