title: Tremor--some controversial aspects.
abstract: The commonest cause of pathological tremor is essential tremor (ET). However, it has proved difficult to identify genetic mutations causing ET, particularly because other causes of tremor continue to be misdiagnosed as ET. Whether subjects with dystonia or Parkinson's disease (PD) carry an increased genetic risk of developing ET, or vice versa, is controversial. In addition, the notion of a separate disorder of benign tremulous parkinsonism (BTP) has been debated. This article gives a selective viewpoint on some areas of uncertainty and controversy in tremor.
authors.affiliation: Sobell Department of Motor Neuroscience and Movement Disorders, UCL Institute of Neurology, Queen Square, London, United Kingdom. n.quinn@ion.ucl.ac.uk
authors.forename: Niall P
authors.initials: NP
authors.lastname: Quinn
authors.forename: Susanne A
authors.initials: SA
authors.lastname: Schneider
authors.forename: Petra
authors.initials: P
authors.lastname: Schwingenschuh
authors.forename: Kailash P
authors.initials: KP
authors.lastname: Bhatia
mesh_terms: D006801:Humans; D014202:Tremor / Q000145:classification / Q000175:diagnosis / Q000209:etiology / Q000503:physiopathology