Foundations of Neurology – serie

The evaluation of the efficacy and safety of a clinical tool, be it a diagnostic technique, a preventive methodology, or a therapeutic intervention, is an im­ portant responsibility of physicians. The history of medicine is characterized by the authoritarianisms of teachers and of organizations giving way to the clinical experience of physicians; authoritarian dictum was replaced by case report and then by case series. As physicians learned to substitute the analysis of data for the inconsistencies of dictums and anecdotes, the problems of the case series as an investigative tool became more evident: patient selection criteria, measurements of outcome, significance of results, and extrapolation of conclusions to the community of patients. In response to these issues, the methodology of the controlled clinical trial has evolved and with it the instru­ ments of study design and of biostatistics as aids to study design and data analysis. The medical - surgical armamentarium has evolved from being dependent solely upon the observations and conclusions of a skilled clinician to being constructed upon the systematic collection and evaluation of data by a team of skilled clinicians and their statistical colleagues: this is the controlled clinical trial. During the past two decades, the evaluation of clinical approaches to pre­ vention and therapy has become particularly important to clinicians concerned with nervous system dysfunction. There has been and continues to be an explosion of information from the basic neurosciences and from the applica­ tion of biotechnology to the nervous system.

This book encompasses basic and clinical reports on the cerebellum and its primary atrophic disorders, the cerebellar degenerations. Rapid progress has been made in understanding the organization and function of the cerebellum at the neuronal, synaptic and molecular level. Of particular importance has been the identification of the chemical transmitters utilized by the cerebellar cellular systems. More then any other brain region, the cerebellum utilizes amino acids as its main excitatory and inhibitory neurotrasmitters. Excitatory amino acid transmiters, in addition to serving neuronal communication, may also mediate trophic and toxic effects and, as such, they may play a role in neurodegenerative processes. This volume should be useful to clinicians who care for patients with cerebellar disorders as well as to the basic and the clinical investigators whose work concerns the cerebellum. Knowledge of advances occurring in basic sciences will help the clinical investigator to develop new approaches and therapeutic strategies for these presently intractable human disorders.Also the basic investigator will benefit from the study of human disorders by identifying new research leads provided by these intractable - yet fascinating - afflictions.

The evaluation of the efficacy and safety of a clinical tool, be it a diagnostic technique, a preventive methodology, or a therapeutic intervention, is an im­ portant responsibility of physicians. The history of medicine is characterized by the authoritarianisms of teachers and of organizations giving way to the clinical experience of physicians; authoritarian dictum was replaced by case report and then by case series. As physicians learned to substitute the analysis of data for the inconsistencies of dictums and anecdotes, the problems of the case series as an investigative tool became more evident: patient selection criteria, measurements of outcome, significance of results, and extrapolation of conclusions to the community of patients. In response to these issues, the methodology of the controlled clinical trial has evolved and with it the instru­ ments of study design and of biostatistics as aids to study design and data analysis. The medical - surgical armamentarium has evolved from being dependent solely upon the observations and conclusions of a skilled clinician to being constructed upon the systematic collection and evaluation of data by a team of skilled clinicians and their statistical colleagues: this is the controlled clinical trial. During the past two decades, the evaluation of clinical approaches to pre­ vention and therapy has become particularly important to clinicians concerned with nervous system dysfunction. There has been and continues to be an explosion of information from the basic neurosciences and from the applica­ tion of biotechnology to the nervous system.