Evoked potentials (EPs) have been used for several decades to assess neurologic function intraoperatively and in outpatient studies. Although the clinical emphasis has changed over time with advances in imaging technology, EPs remain a procedure performed by nearly all neurophysiology laboratories. This book is a modern, practical guide to performing these studies and interpreting the results. It opens with an introductory chapter on the basic principles of EPs, followed by in-depth discussion of each clinical modality including Visual Evoked Potentials (VEP), Brainstem Auditory Evoked Potentials (BAEP) and Somatosensory Evoked Potentials (SEP). A concluding chapter devoted to Neurophysiologic Intraoperative Monitoring is intended to hone skills in performing baseline EPs and evaluating tracings for this important application. Within each chapter technical aspects of conducting studies, obtaining tracings, identifying waveforms, and normative data are reviewed. Detailed presentations of clinical findings, amplified by numerous examples of EP tracings and brief text with salient interpretive points are provided for all applications.