Many extrapyramidal motor diseases result from underlying neurodegenerative processes, which however are very advanced at the time the clinical diagnosis is made. From animal experiments it seems likely that we may soon have several substances that provide neuroprotective effects, but that their therapeutic use must be as early as possible. This fact was the starting point for the meeting, held at Chiemsee, that formed the basis of this book. The idea was to develop in strumental methods that, first, permit an earlier diagnosis by drawing on the experience of experts and, second, provide a better resolution of successful therapy than the currently used methods. As early as 1886, Charcot tried to differentiate the tremor of polysclerosis and Parkinson patients by using a drum developed by Marey, a physiologist. Subse quently, many apparatuses were developed to better identify movement disorders, initially for diagnostic purposes. Most of these methods proved to be inferior to the skill of experienced observers. In the last two decades, however, both the technical advances made in measuring methods and the improvements achieved in methods of evaluation have led to marked advances in the quantification of motor dis turbances. An objective of the symposium held at Chiemsee and of this book is to provide an overview of the procedures that are currently commonly used for extrapyramidal movement disorders, and to identify their potential and limitations."

A state-of-the-art review of the many cognitive, affective, and behavioral dysfunctions associated with movement disorders. These dysfunctions include depression, dementia, psychosis, sleep disorders arising from Parkinson's and Huntington's disease, Tourette's syndrome, as well as multiple system atrophy, progressive supranuclear palsy, corticobasal degeneration, and many other related disorders. The authors describe these behavioral syndromes and their neurophysiological and neuropathological substratum, as well as their diagnostic criteria and therapeutic guidelines. The cognitive and affective dysfunctions are spelled out in detail.

Non-motor Parkinson's Disease is a burgeoning area of the movement disorders field, as patients increasingly live longer and encounter more late-stage symptoms. The spectrum of non-motor manifestations spans much of the body, with non-motor features occurring in all stages of the disease. Identification of symptoms is key for preserving quality of life and successful treatment. This is a practical manual on all aspects of pre-motor and non-motor manifestations of Parkinson's. The genetic causes of non-motor symptoms are detailed and methods of patient evaluation summarized. Topics such as autonomic and sexual dysfunction, mood disorders, and drug-induced symptoms of non-motor Parkinson's are covered in depth. This is an essential resource for movement disorder specialists, neurologists and other clinicians involved in caring for those with Parkinson's disease.