"The startle response (response to a loud noise, for instance) is a reflex that is wired into the brain at a very basic level. Although everyone has such a reflex, the strength and quickness of the startle response is modified by a subject's underlying psychoneurological state. The nature of this modification, therefore, is now seen as an accurate, objective measure of very deep neurological processes."--BOOK JACKET. "This book is the first comprehensive volume devoted to startle modification and offers a unique overview of the methods, measurement, physiology, and psychology of the phenomenon, particularly modification of the human startle eye-blink."--BOOK JACKET. "This book will be an invaluable reference for graduate students and researchers in cognitive science, clinical science, and neuroscience, including experimental psychologists, psychophysiologists, neuroscientists, biological psychiatrists, and clinical psychologists with research interests in psychopathology."--Jacket.