title: A miniature three-channel preamplifier for unit recording in freely moving animals.
mesh_terms: D000669:Amplifiers, Electronic; D000818:Animals; D001522:Behavior, Animal; D002540:Cerebral Cortex / Q000502:physiology; D004566:Electrodes; D004594:Electrophysiology / Q000295:instrumentation*; D008722:Methods; D008839:Microelectrodes; D009068:Movement; D051381:Rats