This book is a detailed, applicable and step-by-step medium helping students and researchers tounderstand Parkinson's disease. It provides the latest information pertaining to topics associated with this disease, including etiology, new methodologies to examine symptoms, multidisciplinary rehabilitation and invasive techniques to analyze Parkinson's disease. Researchers have currently started to focus on the non-motor symptoms of this disease, which are poorly identified and insufficiently treated by clinicians and have a considerable effect on the quality of life of the patient and mortality and include autonomic, sensory and gastrointestinal symptoms, and cognitive impairments. Detailed discussion of the use of imaging tools to analyze disease mechanisms is also given, with stress on the abnormal network organization in Parkinsonism. Novel approaches of early diagnostics, treatments and training programs have greatly enhanced the lives of people suffering from this disease in the latest years, significantly decreasing symptoms and delayed disability. This comprehensive book consists of information contributed by renowned veteran scientists from across the globe."