Uses findings from Seattle Longitudinal Study of adult cognitive development to assist discussion of event history analysis. Illustrates its application to data involving changes of states in individual behavior related to human aging. Describes hazard functions which permit assessment of future decline risk and prediction as to when individual…

Essential tremor (ET), the most prevalent movement disorder, has a peak prevalence in the sixth decade of life, primarily affecting the hands and head. Persons with ET are often significantly disabled and medical intervention often had limited effectiveness. Describes a biobehavioral rehabilitation model for older adults with ET. (Author/JBJ)