This book discusses advances in research on evoked potentials and electrical stimulation. Chapters One describes the neurophysiological immediate and short-term changes that occur in the nervous system structures of patients assessed in three different contexts of work: Intraoperative Neurophysiologic Monitoring (IONM), ICU, and in the Clinical Neurophysiological Laboratory. Chapter Two focuses on the importance of cortical evoked potentials to analyse the neurophysiological correlates of migraines, strokes and related psychiatric complications, paying particular attention to the possible implications in terms of clinical applications and future research. Chapter Three analyses electric stimulation in stroke patients. Chapter Four describes what is known about the effects of the use of electrical stimulation of carcasses of meat animals, including the effects on meat tenderness and meat sensorial characteristics. Chapter Five explores the effects of oxidative stress on brain electrical activity and its repercussions on sensory organisation in geriatric rhesus monkeys in captivity. The final chapter provides a short communcation on visually evoked potentials in rhesus monkeys.