Objective To assess psychiatric outcome in patients with an established diagnosis of a
hyperkinetic (ie tremor, dystonia, myoclonus) psychogenic movement disorder. Background
Longitudinal studies of patients with psychogenic movement disorders (PMD) have to date
suffered from small sample size, lack of sample homogeneity (psychogenic movements
grouped with other somatoform disorders, mixed hyper and hypokinetic movements), the
absence of structured psychiatric interviews, and a failure to adequately address the extent …