title: A simple chronic microinjection system for use with chemitrodes.
abstract: An inexpensive, electrically operated microinjection system is described which is small enough to be mounted on the animal side of a standard Mercury commutator. This eliminates the troublesome swivel joint needed for chronic microinjection in freely moving animals. This system allows simultaneous electrical stimulation or recording and chemical stimulation via a chemitrode using a standard 4-channel Mercury commutator.
mesh_terms: D000818:Animals; D008845:Microinjections / Q000295:instrumentation*