Cookies on this website
We use cookies to ensure that we give you the best experience on our website. If you click 'Continue' we'll assume that you are happy to receive all cookies and you won't see this message again. Click 'Find out more' for information on how to change your cookie settings.

Regional cerebral blood flow was measured using H2(15)O and positron emission tomography in a group of 6 patients with idiopathic torsion dystonia and in a group of 6 control subjects. Subjects were scanned while at rest and when performing paced joystick movements in freely chosen directions with the right hand. Patients with idiopathic torsion dystonia showed significant overactivity in the contralateral lateral premotor cortex, rostral supplementary motor area, Brodmann area 8, anterior cingulate area 32, ipsilateral dorsolateral prefrontal cortex, and bilateral lentiform nucleus. Significant underactivity was found in the caudal supplementary motor area, bilateral sensorimotor cortex, posterior cingulate, and mesial parietal cortex. These results are consistent with inappropriate overactivity of striatofrontal projections and impaired activity of motor executive areas in idiopathic torsion dystonia and may explain the simultaneous dystonic posturing and bradykinesia evident in these patients.

Original publication

DOI

10.1002/ana.410370313

Type

Journal article

Journal

Ann Neurol

Publication Date

03/1995

Volume

37

Pages

363 - 372

Keywords

Adult, Case-Control Studies, Cerebrovascular Circulation, Dystonia, Female, Frontal Lobe, Humans, Male, Middle Aged, Parietal Lobe, Task Performance and Analysis, Tomography, Emission-Computed