title: Principles of signal analysis and averaging.
abstract: Averaging is the primary method for detecting small evoked potentials in the midst of surrounding electrical noise. Not all types of noise can be removed by averaging, however. The condition of the patient, electrodes, amplifiers, and filters are equally important for successful recording.
authors.affiliation: Emory University School of Medicine, Atlanta, Georgia.
authors.forename: C M
authors.initials: CM
authors.lastname: Epstein
authors.forename: D R
authors.initials: DR
authors.lastname: Boor
mesh_terms: D000669:Amplifiers, Electronic; D004594:Electrophysiology / Q000295:instrumentation / Q000379:methods; D005071:Evoked Potentials; D006801:Humans; D012815:Signal Processing, Computer-Assisted