title: A head-mounted 24-channel evoked potential preamplifier employing low-noise operational amplifiers.
mesh_terms: D000669:Amplifiers, Electronic / Q000295:instrumentation*; D001921:Brain / Q000502:physiology*; D004594:Electrophysiology / Q000295:instrumentation*; D005071:Evoked Potentials; D005246:Feedback; D006801:Humans