Susan B. Bressman

TL;DR: An international panel consisting of investigators with years of experience in this field that reviewed the definition and classification of dystonia provides a new general definition and proposes a new classification and encourages clinicians and researchers to use these innovative definitions and test them in the clinical setting on a variety of patients with Dystonia.

TL;DR: Mutations in LRRK2 are a clinically relevant cause of PD that merit testing in patients with hereditary PD and in subgroups of patients with PD, but this knowledge should be applied with caution in the diagnosis and counselling of patients.

TL;DR: The DYT1 gene on human chromosome 9q34 is identified as being responsible for early-onset torsion dystonia, a movement disorder, characterized by twisting muscle contractures, that begins in childhood.

TL;DR: The Movement Scale was a valid and reliable indicator of the severity of primary torsion dystonia and was found to be compatible with scores on the Disability Scale.

TL;DR: To the Editor: Most cases of Parkinson's disease are considered sporadic and idiopathic, although there is evidence of familial aggregation, and several monogenic forms have been identified.