259CHAPTER 11 Polysomnographic Artifacts Madeleine Grigg-Damberger INTRODUCTION Polysomnographic artifacts are extraneous signals in a recording channel that obscure or provide false data. Because we simultaneously record multiple different biophysiological signals…
59CHAPTER 5 Electroencephalography and Artifact in the Intensive Care Unit Nishi Rampal, Carolina B. Maciel, and Lawrence J. Hirsch INTRODUCTION Monitoring the EEG in critically ill patients presents a unique…
27CHAPTER 2 Equipment and Instrumentation Jonathan J. Halford INTRODUCTION The recognition of noncerebral signals in clinical neurophysiology (CNP) requires both the ability to recognize artifactual patterns and an understanding of…
237CHAPTER 10 Artifact in Autonomic Neurophysiology Studies William P. Cheshire Jr. INTRODUCTION The past few decades have witnessed major advances in increasingly sophisticated, noninvasive neurophysiological tests to probe one of…
205CHAPTER 9 Nerve Conduction Studies and Needle Electromyography Devon I. Rubin and Ruple S. Laughlin INTRODUCTION In clinical electromyography (EMG), electrical signals from muscle fibers or nerves are recorded and…
329CHAPTER 12 Artifacts in Evoked Potential Recordings Alan D. Legatt INTRODUCTION Evoked potentials (EPs) are the electrical signals produced by the nervous system in response to external stimulation. The term…
375CHAPTER 14 Artifact Reduction Tasneem F. Hasan and William O. Tatum, IV INTRODUCTION Many simple and complex sources of artifact exist when attempting to record physiological signals from the nervous…
183CHAPTER 8 Artifacts in Pediatric and Adult Magnetoencephalography Christos Papadelis, Michel AlHilani, and Phillip L. Pearl INTRODUCTION Magnetoencephalography (MEG) records the magnetic brain activity that is measurable using extracranial sensors….
357CHAPTER 13 Artifacts in Neurophysiologic Intraoperative Monitoring Aatif M. Husain, Stephanie L. Schwartz, and Emily B. Kale INTRODUCTION Neurophysiologic intraoperative monitoring (NIOM) involves recording low-amplitude neurophysiologic signals in the operating…
95CHAPTER 6 Artifact in Pediatric Electroencephalography Erika Takle Axeen and Phillip L. Pearl INTRODUCTION Surface recordings of electrophysiological brain activity are subject to artifact from a variety of sources (1)….
